New Game Plus Features

I like the idea of only being able to unlock either the pure Miriam costume or the fully corrupted Miriam costume in a single playthrough and having to complete a New game + to unlock the other.

What made the Chrono Trigger best in slot gear only being partially obtainable in a single playthrough so great though was being able to kill the boss of the game at any point in time and even having a difficult time on a new game+ trying to kill the boss of the game at a point the main character is supposed to die and the boss is more powerful than any other point in the game, I don't think that would be as exciting in a game that is more skill based and would prefer the more challenging fights to be won because you got better at the game rather than better equipment, so I would prefer more cosmetic or horizontal progression post game like more shards that aren't necessarily better just different.

as far as level goes I like the way Xenoblade Chronicles 2 is about to do it, have your level carry over to new game+, but give people the option to sell their levels for a currency to unlock cool new stuff. gives people the option of choosing what level they are throughout the whole game and that way you still always feel good when you level up as you get something out of it

Before I saw these ideas, I was just of the mind that completing the game could unlock a Secret Ending (or more) after selecting New Game+. Naturally, within that playthrough, you'd need to fulfill other special conditions in order to potentially witness it.

That's similar enough to how Chrono Trigger did it, considering the multiple endings you could view after defeating Lavos at several points in the game's story.

I'd even be fine with there being unlockable features or items that you could only get by completing the game on Hard or Nightmare difficulties (which, like New Game+, would most-likely also be locked until you've completed the game once).
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This is similar enough to how Aria of Sorrow, Dawn of Sorrow, Portrait of Ruin, & Order of Ecclesia hid certain items behind difficulties.

Sustained It would certainly be yet another incentive to run a New Game+ playthrough.

It looks like my original wish for NG+ may have been granted.

With the end of March update, it was revealed that cooking and eating each food item for the first time grants Miriam a permanent stat boost.

It remains to be seen if the "first time" trigger gets reset each NG+, allowing the stat boosts to stack across multiple playthroughs.

However, my hopes remain high.

There's the obvious stuff, like items that can only be found or secret bosses that can only be encountered in NG+. But I'd like to suggest something else, something that as far as I can recall, I've only seen in the DS game, Final Fantasy Crystal Cronicles: Ring of Fates.

I'd enjoy some kind of 'New Game+ Hard Mode'. Like, the stats of all enemies are raised to challenge a max level character. Basically, the enemies at the beginning become on par with the late game enemies of the initial run, and the enemies of the game go up from there. Perhaps after completing that mode, you unlock some sort of 'New Game+ Expert Mode' where the entire game is balanced with a completely maxed out Miriam in mind?

I really like the concept, it makes NG+ a lot more interesting because a lot of games that offer NG+s can get really, really boring. (Though the option to go through the basic game with your upgraded Miriam should still be in.)

Chrono Trigger is on my top 10 desert island island games. So so good. I still have Kingdom of Zeal dreams

Apart from the obvious alternate character options after having beaten BS, I'd really like the New Game+ to give players the option of applying various level caps. 

I really liked how they did NG+ and beyond in Tales of Symphonia on the GameCube. You earned points as you progressed through the game the first time, then when you are starting NG+, you get to spend those points on whatever elements you wish to carry over to the next game cycle (everything else gets reset). It is quite the ultimate in NG+ customization if you ask me.

I third this, for sure.

re: tales of points system.

Trails of cold steel has this too kinda. But the first game that really did this (and did it far more extensively too) that I know of is Sengoku Rance.. Which is a very naughty game btw NSFW warning. It actually has good gameplay though, which is the only reason why I like it.

In any case, it is kinda like a turn based strategy game that acts half like a really big board game. You have military units and captains and conquer territories, collect taxes, etc. You get to perform so many 'actions' between each of your turn, not just move and attack, but goto the bar, shop, church, explore optional dungeons, etc.

In any case, it gave you a score at the end of the game that was calculated using many different variables. How many turns did it take for you to beat the game, did you get the bad ending, the normal ending, the good, ending, the 'true' ending. Did you kill Bonus boss X, Y, Z, etc. How much of the country have you conquered by the end, etc.

Then in NG+ you didn't just spend points on costume unlocks, carrying over levels, money, items, etc. But instead smaller things like start with a sorcerer unit in your army (which are otherwise unobtainable until 1/4 thru the game or something), get 3 'action' points per turn, gain fame 10% faster, Start as your class upgrade instead of base class, etc

Naturally these are not 'start at level 99' like would be the case for other ng+s (provided you ended at it). But simply having that option available as well would be fine with me.

Basically I like the idea of a ng+, but oftentimes I don't like to use them because many are too overpowering. I want a treat or a bonus, not something so blatantly unfair that if the AI int he game was another player they would storm off in a huff at how badly you are cheating.

Also, I don't particularly like costume or cosmetic unlocks in ng+ unless they are totally immersion breaking, those are fine. But otherwise I would prefer that the player have 'normal' costumes available in their first game because expecting players to play your game from start to finish more than once is a bit much. I mean sure I'm a gamer, I do it all the time to games I like, but I kn ow lots of people who aren't like that, and shafting them for some arbitrary reason isn't cool imo.