Just saw that SQL 2008 will ship in August at the ISV Developer Evangelism Team Blog. That is really good news given the new geo spatial features, no ISS reporting services and all the other new and enhanced features in this release. I would expect then that we may see the final release of VS2008 SP1 around the same time. I hope that they can iron out the installations issues that have been experienced by many, including myself.
I'm also looking forward to the new WPF controls, specifically the ribbon toolbar and data grid that where supposed to be available shortly after the release of SP1 beta 1, but have yet to materialize.