KKND2 OpenRA version is planned too.
Anyways, the plan is to have two versions - classic and modern. As you might have guessed, the classic version is supposed to be as faithful as possible to vanilla game, including all imbalances. The modern version is supposed to have more cool stuff like overhauling Bomber superweapons or rebalancing the game (true, snipers are mega OP ). Our current build is mixbag of both modes which will be properly split in the future.
And once KKND1 OpenRA is established, it will be super easy to build KKND2 on top of that. Heh... that's how KKND2 was made, it was built on top of KKND: Xtreme.