I would say we would consider it. But there are different levels of ai usage in our game.
Characters are made with ai, handmade would be naturally better even if it would be different style. But there is a pipeline around it and a lot of art already made for the game. But if we would have hired person to do all of that on full time - most of the work on changing the game around it is would be pretty doable.
Backgrounds are made with ai as well. And it would be a much bigger hustle to have it be replaced with handmade. And would require god knows how much people... Also they seem to be in the weird sweet spot were they are non important enought and well "background" that they seem to us alright to be left as they are, as long as character art is replaced.
But speaking of the investment, what scale are we talking and what would be the obligations?