Multiple (probably) good suggestions:(also probably wanted by the community)

And the list goes like this:
Implementing better bots I would suggest for this one partnering up with Rlbot, because their bots have a amazing playstyle and can help in training extremely often, A better training system like Ripcore which i would definitely recommend because taking replays and being able to (forcefully) make yourself hit the open net you missed is definitely a good way to train.
Overall i hope the community agrees with me and that this will get added.
Sidenote: partnering up with bakkesmod would be a lot easier to implement these features if you want to implement them and i am very sure this will make the community much happier since bakkesmod offers everything that isnt already in the game with both just itself and all the community plugins