>>18447514>>18447513This. I own a Black cartridge, and I've got Black 2 on a flash cart, so before my free trial expired I Genned everything I could onto Black 2, traded them all one by one onto Black, then transferred them through PokeBank.
Just because Nintendo WFC will go down doesn't mean you still can't use Gen. I think the only thing that it would affect is people using the GTS to attain their Pokemon from PokeCheck, but if you have flash carts or some way to transfer them over to legit cartridges, you're fine.