If 3.0 gets added I would just like to make the recommendation that there would be a power cap of sorts, cause how I saw it evolve was that there were a group of just really powerful characters, like Gil, Karna, Phoenix, etc, all of which were powerful and killed tension cause they could just kinda deal with it.
So if someone wants to do a powerful character because they personality is interesting have them make it so because of the nexus their powers are throttled and they can't use all of it.