I asked this very question of Doug at SVS a couple weeks back when calling to return my SB12. He said their CEO has stated a gloss black version should be available by mid year, which I took to mean summer sometime. I'm waiting for the gloss black as well!
EDIT: I asked about the SB-2000, since that is the one I'm interested in, not sure about a gloss black PB-200 but I don't see why they wouldn't offer it. As far as a price increase, he said it would be something reasonable, like $30-40, a la the difference between flat and gloss SB-12's.
We'll I just emailed them and unfortunately they said they have no plans for a gloss black PB-2000.