The Visual Studio team has released some info on what’s coming in Visual Studio 11, or rather Visual Studio 2012 as it will be released as.
You will find the Beta list here:
What’s New for SharePoint Development in Visual Studio 11 Beta
I think that we can assume that the list will be updated with a SharePoint 15 list later on as it gets closer to release. That is a list that will be really interesting to read.
There are quite a few goodies here for 2010, for instance:
Publish SharePoint Solutions to Remote SharePoint Servers
more on this is available here:
Deploying, Publishing, and Upgrading SharePoint Solution Packages
You can now publish a solution directly from Visual Studio to a remote server.
If you want more, read more on the respective links.