There is one new Medal expansion with the release of SAJM that anyone with enough Medals can use.
Also the three Expansions offered in "The Castle" at levels 16, 18. 20. that anyone can also get (eventually) .
The only other new expansions will be when you take the SAJM Continental Map done to get one expansion. And an additional nine when a player enters
SAJM. The rest of the new added expansions visible are for future possible things not yet revealed.