If this game is truly being geared towards a 2007 release, lets say pre-christmas release, then why arent we being given any info.
Im getting annoyed by the lack of info, day by day my anger is growing, I want it NOW.
But yes, I think it would be awesome if Vergil was included in DMC4, even if he didnt play a major role in the game, his inclusion would make alot of people happy, including myself, it would be even better if he had a major role to play in the story of DMC4.
Considering we dont know what the future of DMC is, this could be the stepping stone for the series to reach new heights on the current generation consoles.
So that said, Vergil, Dante and possibly even Nero moving into the next installment would be a good thing.