I think they should just almost entirely axe the Aetherpool system, currently it makes it so that doing even party clears early-on is exceedingly difficult but party clears later (once everyone has high/near max Aetherpool) just feel way easier, it kinda causes Heaven-on-High in particular to feel really underwhelming because it makes only the very top floors any real threat - the Aetherpool grind is especially miserable and tedious in Palace of the Dead

I'd like it a lot if there was a split Normal/Savage version with the former being solo-oriented and the latter being more party-oriented, somewhat like Palace of the Dead 1-100 vs. 101-200

also hope that if we get more leveling floors then they're designed more like Palace of the Dead 1-50 rather than 51-60 or Heaven-on-High 21-30, spamming the same ten floors over and over again for leveling is just absolutely miserable