I'm also a solo developer, so if I do something new, it's normally building on what I've done before. One of the things I've been trying to do in the game jams I've done is to try to do a different style of game in each jam as I'm still learning and gives me a chance to try out different mechanics.
So far my exposure to enemy AI has been using states based on player detection, I would like to expand it into using algorithms to manage behavior, but it's a bit outside my skill set for now.