I expect an announcement at Gamescom. The question is will it be $50 or $100 price drop? I really don't see a small $50 drop will have much impact. I think Sony will continue like the have done on ALL there homeconsoles. A $100 price drop that will release just in time for Metal Gear Solid 5.
http://gamrconnect.vgchartz.com/thread.php?id=130023&page=1# Official Playstation Vita Thread! Come in and join!!!