Visual Studio 2013 brings us closer to One ASP.NET. There’s no MVC project type or Web Forms project any longer, there’s just ASP.NET. If you want to mix Web Forms and Web API, or MVC and SignalR, go ahead! You are encouraged and supported. New features and functionality are brought in with NuGet without breaking existing apps. New tools like Browser Link make building for the web more enjoyable than ever.
What's New in Visual Studio 2013
ASP.NET and Web Tools for Visual Studio 2013 Release Notes