That's the idea, yes. I future proofed so if/when I get to it, I can add the Gen 1 through 4 sets of cards without having to change any of the work I've already done. It's a long off goal I'm not sure I'll do, but I wanted to at least leave the option open for myself.
And as of right now, I'm planning on keeping the game updated with each new set that comes out. I'm planning on actually finishing the AI, fixing any bugs with the game itself, maybe a few more customizations like coins and sleeves, and potentially including the older cards too. After that, I'll just have to see what else there is to do.