Love it! If the sample list can be made visible (for instance in yet another tab) even without enlarging the panel, we basically have the old pre 2.8 situation back, where everything can be seen in one place. That would be wonderful!
yes all my request in the past will be fulfilled:
Sample/Plugin/Midi-window: Best of both worlds 
Just a little crazy idea for the layout: Sampler above pattern editor
It would be awesome