One of the more experienced users will not doubt step in here but in the meantime. Any regular VST's you have installed would be obviously available if PT still recognizes that format. Anything Pro Channel, or that was bundled with Sonar, (like Melodyne Essential), I'm guessing would not be accessible in PT, (other than the VST version of the CA2A). I think TH2 was bundled with Sonar.
Sorry to see you're having to go over to the dark side. LOL
HTH