Those are amazing news. Full support of VST in Reason - Instruments, Effects...
Just imagine what you can do now - Maschine inside Reason, Kontakt, Omnisphere, Reaktor... everything inside Reason racks. And you can modulate it with CV inputs. Each VST has up to 8 optional audio outputs.
So you can do crazy stuff: put Softube Modular or Reaktor blocks and route CV signals to audio outputs and use those outputs to control other CV inputs in Reason synths or other VST instruments.
Or put Slate Digital Virtual Mix Rack - and you have your API500 rack in Reason rack, or Soundtoys Effect Rack inside Reason Rack! Wow! That's one the most exciting news of this year!