Yep, only 2. For now anyway. It will take me ages to save up enough to clear the Harmful Hemlocks from the second new expansion anyway.
What is the point of supposedly giving us 2 new expansions, finally, then making the one so incredibly expensive AND time-consuming once you've started clearing it, that the vast majority of us will not be able to actually USE the space for a week? Sigh. 1 step forward, 2 steps back with this game.