Visual Studio 2010 comes in three tiers, each costing a good chunk more:
- Professional Edition
- Premium Edition
- Ultimate Edition
There is no longer a Standard Edition. There will still be the hobbled Express Edition.
With your Professional MSDN subscription, you will automatically get the Professional edition of VS 2010 when it comes out. You can upgrade to Premium at any point thereafter of course. However, what you want to do is upgrade your msdn subscription now to Premium. Then you will get the Premium VS 2010.
I really want to stress this. Everyone pay attention. You need to upgrade to MSDN Premium before VS 2010 comes out. That is, before March 22, 2010. If you do you will get a fantastic automatic upgrade to VS2010 Premium Edition. It's much cheaper to upgrade your MSDN subscription now than to wait.
VSTS (Visual Studio Team System) add-ons (Developer Edition, Tester Edition, etc.) no longer exist in 2010. All the VSTS stuff is part of Visual Studio Premium. The Premium Edition has almost all the great stuff now in VSTS. You'll have the code metrics, unit testing goodies (include code coverage), and the fantastic data dude stuff. (The higher end Ultimate Edition has a few extra testing stuff. Web load testing I think.)
Team Foundation Server is included in your MSDN Subscription with either VS2010 Professional or Premium.
So, you guys are already good for TFS 2010. What upgrading to MSDN Premium now will give you is all the stuff currently in the VSTS add-ons. There is a lot of good stuff there, and it's getting better in 2010. The versioning and deployment contained in the data dude stuff is really great.