I'd like to be able to bring a bunch of different styles from a given genre up on a computer screen at the same time and copy/paste different bits of them into new styles. I'd also like to be able to include real-time effects such as EQ and filter tweaks during playback. The same goes for sounds. In my opinion, you must have the capability of real-time tweaks for performing modern music.

Save all of my created styles and sounds on the computer in a library and transfer them onto the keyboard whenever needed.

XGWorks was headed in this direction but it never lasted, sadly.