Personally, I would love to see some animated features, like attacks, spell effects, traps and so forth. I think this would increase player customization and enjoyability as they can decide how their attacks would appear on the screen, as well as spells. It could also add some enjoyment on the side of the entire party as instead of the DM saying "The pit trap below you opens up" the screen can animate it for added surprise. I understand this could be a way way down the list feature, it would just be something i would like to see as both a player and a DM