You'll probably see no change, although I haven't played myself. As far as I understand they've just added divorce, remarriage, and multiple lovers to support Villiany, but not the underlying Fortress issue of them being almost incapable of forming relations without overseer guidance (i.e. the structures have been modified, but not the basic logic feeding them in Fortress mode).
The needs issues are intended to be addressed on the road to the Premium release, but the next burning issue on that road (apart from the raging fires of crash bugs, which is going to be the next [few?] release) is to do some of the graphics stuff to allow the artists to proceed with their tasks.
I'd expect the Premium release to happen almost precisely a year after the first Villains release, i.e. just short of in a year, as I think there's a deadline about that time.
It would make sense for needs to be addressed as soon as the artists have their prerequisites taken care of, together with lesser Villains bugs, as that would allow the community to play test and provide further tweaking feedback, but my second guessing Toady hasn't exactly had a stellar track record in the past. However, the indications from Toady are that the development will change to a two track one, i.e. support for the current release in parallel with development for the new one, as a 5 year release silence after the Big Wait starts would probably kill DF commercially. This is what would make it possible to go back to fix things after initial graphics support has been added to the Premium track.
So, check back in a couple of months...