From the hints that were given in the interview...
- At least 2 ship models will be refits.
- One ship model *might* somehow be related to Star Trek: First Contact.
- One ship model will likely be a non-Starfleet carrier from a "Federation member race".
- Apparently he has not been given the green light to start modeling the Vesta.
- Chances of seeing the Ambassador will be very low. (based on his forum posts)