In a few years as image generation consistency improves, any video game artist can go from just creating characters for some other game dev to creating full-on animated sprites directly. Instead of having to depend on someone else to code their ideas, they can directly create that game. And the inverse will also be true, game devs can use AI to create generic arts for their game and work faster, create games that depends more on tech than art. Both flavors of games will bring something unique and doesn't invalidate the work of the other as useless.

It's already happening in the movie industry. Things like painstakingly hand-tracking an actor's face onto a body double vs using deepfake face replacement. A single vfx artist can now do this work much more quickly, pushing down the cost to do it. This in turn opens up new opportunities for work which were previously not economically viable, like splicing in retakes or making mouth movements match the voiceover dialogue.