Would be great to be able to load files in the live-looper tracks. So you could import audio loops or live-loops from other projects in a project and be able to use the new timestretch feature to make them fit.
Would also be incredible if the upcoming bounce pattern to sample would allow for saving it to a live-loop track as you would with a sample track.
That would free up a lot of polyphony if you could bounce your percussion tracks for example to the live-looper and have them play there as a loop. Especially since the looper can play on the same output as a sample track.