The Boba Fett popcorn bucket is still there in the studios at the moment due to a mix up (they didn't get it finished in time for the first few Star Wars Weekends, so they had an overstock). It may be popular enough that they're keeping it around, though no one seems certain about it.
Other then that, it's unlikely they'll have the star wars weekend treats. They may have a different cupcake or something celebrating the movie. Or maybe they will have everything. As this is something that hasn't happened before, there's no guarantee either way. The special meals almost certainly won't be there, though.
In (fifty million years)/when Star Wars Land is finally open, likely there will be Star Wars inspired treats there all year long. We'll have to see.