This short article shows you some interesting facts for the next version of Visual Studio, Visual Studio 15.
In //build// 2016, the session The Future of Visual Studio has the interesting slide below. The minimum installation size of the next version of Visual Studio is 250 MB. It will only takes less than 180 seconds to install, I believe that will depend on what type of computer you have.
I will definitely have a try soon, Visual Studio 15.