2.5d is great. Minis on flat maps is how we play in person.....I like it online also.More of a general Maps idea than a Drops one, but I would love to see the tokens evolve from flat discs to more of a 3d, miniatures style.
Edit: I would also love to see some Level Up material on DDB. Right now I get them on PDF and import them myself, but it would be super cool to see material like their recent collection of low powered, high flavour magic items available.






