my 3 personal suggestions
Hi, I'm Italian. Excuse me for the bad English! :-)
1) it would be nice that the NN modules can import libraries in many formats (kontakt for example), just like the Motu MachFive 3. In this way we must not feel the loss of external sampling modules.
2) add markers for better workflow
3) Just like you have done for drums, bass and piano, creating better orchestral sounds. Currently there is only Miroslav and no better alternative. In this way, Refill available for creating music, pop, rock and soundtrack are all there!