A couple of things regarding general VST 3 support:
-
Soundtoys, which had been silent for a long time and made many users worry about their future plans, have finally announced that their complete suite will support VST 3 very soon:
https://www.soundtoys.com/m1-capability/ -
A month ago I inquired Joao, the guy behind JBridge, about a possible update to his software to include VST 3, so we could wrap VST 2 plugins as VST 3 once Cubase stops supporting the VST 2.4 protocol. He wasn’t very convinced about the idea at this point, though, so we’ll have to wait and see.
Another alternative to do this could be Wusik X42, which currently allows VST 2 <> VST 3 bridging, but doesn’t seem to be very stable and is only available for Windows.