Here is some links about cool new features of upcoming version of Visual Studio 4.5.
(1) ASP.NET vNext Series - Index
(2) HTML Editor Smart Tasks and Event Handler Generation (ASP.NET vNext Series)
(3) Strongly Typed Data Controls
(4) Model Binding Part 1: Selecting Data
(5) Model Binding Part 2: Filtering Data
(6) Web Forms Model Binding Part 3: Updating and Validation (ASP.NET 4.5 Series)
(7) New Bundling and Minification Support (ASP.NET 4.5 Series)
(8) New CSS Editor Improvements in Visual Studio (ASP.NET 4.5 Series)
Some more links showing Cool new features of Visual Studio 2011
(2) HTML Editor Smart Tasks and Event Handler Generation (ASP.NET vNext Series)
(3) Strongly Typed Data Controls
(4) Model Binding Part 1: Selecting Data
(5) Model Binding Part 2: Filtering Data
(6) Web Forms Model Binding Part 3: Updating and Validation (ASP.NET 4.5 Series)
(7) New Bundling and Minification Support (ASP.NET 4.5 Series)
(8) New CSS Editor Improvements in Visual Studio (ASP.NET 4.5 Series)
Some more links showing Cool new features of Visual Studio 2011
(9) Bundling in visual studio 2012 for web optimization
(10) Multiple file upload with asp.net 4.5 and Visual Studio 2012
(11) Event handler generation in Visual Studio 2012
(12) Free Visual Studio 2012 eBook from Telerik
(13) Model binding with ASP.NET 4.5 and Visual Studio 2012
(14) Incremental search in Visual Studio
(15) Dark Visual Experience in Visual Studio 2012
(16) Caller Info Attributes in C# 5.0
(17) Where I can find SQL Generated by Entity framework?
(18) Search and filters available in visual studio 2012
(19) Visual studio 2012 color editor- Make Visual studio 2012 Colorful
(20) Getting started with Twitter Bootstrap and ASP.Net MVC
(21) What’s new in ASP.NET and Web Tools 2012.2 Release Candidate
(22) HTML editor enhancement in visual studio 2012
(23) Video about different searching options in visual studio 2012
(24) Page inspector in Visual Studio 2012
(25) SelectMethod in ASP.NET 4.5 Model binding
(26) Dependency graph in visual studio 2012- Understand your code better.
(27) ASP.NET 4.5 TextBox TextMode Property
(28) Two free spell checker extension for visual studio 2012 every developer should use
(29) Unobtrusive validations in ASP.Net 4.5 Web Forms
(30) Visual Studio 2012 Tip- Closed All But Pinned feature
(31) Visual Studio 2013 : Peek Definition a new feature
(32) Scope to this feature in Solution Explorer- Visual Studio
(33) Visual Studio Command Window- A useful but unknown feature