Klaus,
yes. But probably not in core-µarch. Rather next integration-step. Makes more sense.
I seem to recall seeing a new micro-architecture on some roadmap. I thought it was originally scheduled for 2008, but it is no longer on public 3 year roadmap, so it could now be 2009. Hester mentioned it in an interview as well. I don't know how exactly it relates to Fusion, if they are thinking a deeper integration between graphics and CPU, or a modular approach. I would still assume that the approach will be modular.
Joe