It's "just" a trailer for this new expansion.
As far as I can tell, there are no missions or even campaigns coming with this one. Sander is busy with work again so I don't know if and when he can work on missions for that. I'm as busy as Sander with work and all my other commitments, the best I could come up with would be some quick port of 'old stuff from the past' which works so I don't have to spend days on fixing bugs.
I hate to see this Expansion released without any missions at all so I gonna sit down later and see if I can come up with anything that doesn't take days to get finished (and preferably works out of the box). Can't promise anything though.