He speaks tonight. From the NYT:

Mr. Guillory [Ferrel Guillory, a political scientist at the University of North Carolina at Chapel Hill] said that because the context of Mr. Gore’s candidacy was so different from Mr. Kerry’s, the party had moved on, leaving Mr. Gore a “paradoxical figure.”
“Gore doesn’t return as a beloved figure,” Mr. Guillory said. “There is some admiration for his enunciating in the strongest possible terms what Democrats are thinking about Bush, but it’s poignant now how little real embrace of Gore that there is.”
He added: “The party has moved on with different personalities and a different idiom. And as the party looks back to a model, it looks to Bill Clinton’s ability to build a coalition and enunciate a vision.”

The DNC attitude: The election was stolen from the Democrats. That’s the Al Gore message. Period. If he tries to say anything else, cut to Kerry Vietnam story.