I don't think that development is that important. Many coins are putting "fancy" and pretty much useless features instead focusing on the most important part of the "game" - adoption. Currently 95% of them are like a girl who is putting makeup in front of the mirror, but she's not going out of her home.
Honestly, I think a lot of coins have given up on adoption. When they do that however, they become part of the problem rather than the solution.