I would miss IC2 in so many ways, I would rather have ic2 and thermal expansion, but the best part about all of this is, you can add it yourself! That's pretty awesome in itself that you can add pretty much any mods you want if you can get them to work with others without too many issues. IC2 is just to me, It's one of the biggest mods in tekkit and I really wouldn't want it to be removed. If it is oh well I can easily add it back in. Excited for this new tekkit update!