Well, the onboard video is in the Northbridge, and there's a possibility the new 800 series Northbridge will be released sometime in 2Q '09, but paired up with the existing 700 series Southbridge.
Personally, I'm hoping that's what AMD chooses to do (and makes known somewhat soon), as I've got 4 builds sort of just hanging out there that would be perfect with 800 series video performance.
Granted, I'd love for the 800 series Southbridge to be released in 2Q '09 as well (assuming of course the Northbridge even launches then), however, if it's not ready, hopefully AMD doesn't make us wait for the Northbridge until the Southbridge is ready.
Chuck