I'm not sure what's excluded in the Licence apart from Discovery, which is pretty limited in terms of new content. There's a few new classes of ship and some species, but not a lot of information to really flesh those out.
I was thinking of Discovery, the Kelvin universe, maybe some Kzinti stuff since that would require additional licensing, also there's some FASA favorites that could be converted, and other non-canon ships that are popular (such as the Aventine).
"Lease and pong life. Prosp long and liver."
—Varek of Sulkin'