i think that'll be my plan as well. Get all existing armies I have to a point where they are complete as possible. It could be a good thing for the game going over to Atomic but past experiences tell me otherwise so I'm going to cover all my bases to avoid hunting for OOP stuff a year down the line to make my armies playable.
I think even in the unlikely event they did butcher the game people would pick up the old rules set and keep it running and make their own 3d prints.
Saw it first hand before with Halo Ground Command.