Personally I think adding an ai will come down to a couple of things....
1). How long and how much effort it takes to solve all existing issues
2). How many people bought the game and how much future sales they can get from it? I suspect but have no idea that sales and excitement were less than anticipated. Don't know how long they can continue to pay the developer if it is not making money, unless it really is doing well. With the lack of talk and discussions on it, hard to believe that is the case
3). Since the basics of the game seemed pretty broken, it does leave a lot to be desired some kind of complex ai will be successfully implemented. I would think that would be the hardest part of the game, but who knows.
In the end I do hope it all turns out great since I own it, but I have very low expectations at this point.