Super late reply but thank you~ I've been working on the script the last few days; along with doing some hard thinking on how this game should go. It's kind of at a bit of a bottleneck where I want to simplify the game systems so it is less work to develop (since there's no way I can come up with something as complex as Pokemon's battle system) and still keep it fun.
The big thing I thought of is to leverage AI's strength; which is to produce a lot of characters/sprites in a short amount of time rather than taking a lot of time to craft one character and use AI to reproduce the character. This way I can set up more unique encounters and let named characters be more special things that only happen at the end of questlines.