I’ve read in an article that there has been an unofficial C10 version that supports a large portion of midi2.0 already so I guess this will come with C11.
However I wonder if this will be of any benefit for existing VSTs. All parameters not explicitly exposed (so basically everything in Kontakt) will still use the old format if I’m not mistaken and thus be restricted to 128 levels. I haven’t read the VST sdk specs but they probably have to release a new one exposing midi2.0 messages.