I think not. Looks like the DNC will only accelerate its leftward drift, thereby alienating more and more working American families. This time the Repubs will avoid the Newt hubris and not proclaim a revolution, something that makes voters uncomfortable. Black Americans have not experienced the hell on Earth predicted by the DNC should Bush win, so they're not energized to go out and vote rabidly Democratic.
Unfortunately for Dems the War on Terror plays to the hand of the party in the White house. Otherwise, a more middle of the road Dem party could make inroads against right wing zealots.