What Castlevania parts do you want in Bloodstained?

SotN being the most significant entry in the series, and Bloodstained being marketed specifically on the appreciation and interest in those games, I pretty much assume that the game intends to behave and play in the same fashion.

Of course it will be a little different, and hopefully benefit greatly from modern embellishment and greater depth, but if it doesn't include a significant amount of the behaviors and aesthetic popularized in Castlevania... Than it's basically not fulfilling the quality it was marketed on.