Yes still bright future for MIDI. Even wind instruments can be effectively reproduced via MIDI when playing with vsts such as those produced by Sample Modeling (www.samplemodeling.com) or Audio Modeling (www.audiomodeling.com). These vsts are best played via a wind controller if possible but with this a keyboard player can effectively play authentic sax or trombone/trumpet. There are so many amazing vst instruments nowadays from orchestral to rock and pop and they are still powered by MIDI.