Oh my, should I be a bit worried? As an xbox owner I've been enjoying all of the DLCs, but will I now be deprived of one?
It really bugs me when we're fed scraps like this. It's probably going to bring about a lot of panic and rage over a simple misunderstanding. Make more comprehensive announcements when you're ready to give the information.
I may never know how a PS3 user feels, but I think I'm getting a taste of it.
You really shouldn't. By saying "new" he isn't implying exclusive content is coming for PS3 and PC only, the only "new" content is referring to can't be anything else than Dragonborn. Just read it as what it actually is, a reassuring announcement for PC and PS3 users, who might get DG as well [I see no technical reason why they could get DB and be deprived of DG].
I might add that at the time of this writing he couldn't be more specific than that because it's part of the deal with M$.