What do you expect? Marvel Heroes developer team is down to 50 from 150 people and the game lost a lot of players in the months of July, August and September.
MH developers really need to release content (heroes especially) fast and they have to do it now. So that they're simplifying character art and core game systems especilly the ones that will allow them to release new heroes quicker. Don't expect completely new body types for the new heroes or new body-type costumes on top of already existing ones. On the gameplay side of things; skill trees (potentially skills in the future), unique items and omega system all of which are highly-related to heroes had to be simplified to help with the pace of new hero release.
Developers are trying hard to not sacrifice a lot of gameplay depth and they're hoping to keep as much of it as they can. I applaud their efforts. But we shouldn't expect a 150-men work from a 50-men team.
I suggest everyone to take a last good long at this version of Marvel Heroes before the new changes come.