I'm pretty sure you could kick something out, because when I prompted it (again this is Microsoft's AI which isn't premier) - this was 1 of the 4 it pushed out:
I'm trying not to push the matter, but for you non-artists (speaking as one who made a whole lot of artwork for this game), art is built off of art. I didn't sit down with oil and paints and canvas to make the celtic building texture you still see in this game - as illustrated here:
Sure, I made some from scratch (the thatched roof texture - I drew with a pencil, scanned, brought into PSP and colorized it, found some leaves and cut & pasted them onto it), but others aspects (the wad and dabble, the stone) I utilized art resources from "other sources". My thought at the time was, if you modify it enough it becomes yours. I remind you all that WFS (aka WFG) was born out of the modding community. We modified existing game art. Modifying art incorporates elements from the original work in a transformative way, adding new meaning, interpretation, and in a distinct 0 A.D. artistic style. What you are essentially doing is using the previous art as a starting point for a new creative expression. Honestly, this practice was a great way to learn. You have no idea how many games I tore apart to look at their art assets to see how they were doing something, achieving a certain look, or be efficient in polygons (back when that was important).
Think of it also from a programmers perspective. Just because you use libraries to accelerate development vs. writing all the low level code from the binary all the way up certainly doesn't cheapen the work that you do. You are standing on the shoulders of giants.
I'm not suggesting you use AI art to replace or change the entire look of the game, I'm just saying if you are struggling to push the final aspects of the game over the finish line that you have been laboring at for years now... this might be a lift in the upward direction. You are still going to have to artistically manipulate its output anyway because it is never going to be perfect. You wouldn't use art that it kicks out that looks like cartoons or hyper realistic. Your art lead should be able to hold together the cohesive look of the game. I also don't think anyone would force you as an artist to use AI either if it doesn't give you any pleasure in the creative process. I just think you should consider it as a tool to put in your toolbox.
For example (of a final push), take this thread. I didn't read the whole thing, I'm not sure if this list has been completed. I'm assuming not, otherwise why keep it pinned?
But, if you need help - maybe something like this would help: https://elevenlabs.io/sound-effects
I get the glory/honor of doing things from scratch - and I respect that. But at the same time I'm thinking... 25 years in development? I hope this thing gets to beta before I die
Again, I respect the team's choice however you decide. I see the merit from both perspectives. Sorry for playing devils advocate on this, I just see this as a tool to succeed and I want you all to succeed