minecraft is one of those games where i want a save file that goes on for years but unless you pick a version and stop updating past it (which to be fair gets more and more tempting every day with nu-mojang's constant shitty updates) it's inevitable that at some point you'll have to give up several mods that are just forgotten about by the authors
anyway i figured out that all i really care to add to minecraft is more challenging mobs and proper realistic worldgen. sadly neither are available on current versions. new reterraforged update WHEN