Arc System Works didn’t set an exact date, but we do have a timeline for the final BlazBlue: Continuum Shift downloadable character. Platinum the Trinity (surprise?) will be ready in spring 2011.
Valkenhayn Hellsing, the second downloadable character, was just released for Xbox 360 owners this week. Until January 10, he’s discounted down to 320 Microsoft Points ($4). Afterwards, Valkenhayn will cost 560 Microsoft Points ($7).
As of now, a price for Platinum the Trinity has not been announced.