A nice feature might be an AI assisted tsumego solver where users could enter their own tsumego problem or select a group to analyze at a specific move in one of their games. AI might go for a bigger move elsewhere, but you still might want to know if it was even possible to save that little invading group.
It looks like a program called Xuan Xuan Go has something like that, but you have to register for the full version (buy for 69 Euro) to get the tsumego solver; I have not tried it. I’m sure it can’t solve everything. DDK players would benefit from even a very limited tsumego solver. I’ve toyed with the idea of trying to write a simple brute-force tsumego solver, but as you get into larger problems, you would probably need a Neural Net to trim down the decision tree. I’m sure that would be quite a large undertaking (understatement). I’m no AI expert either; Just an electrical engineer who does a bit of coding on the side.