I have 1 problem, and I want to consult with people. I have started to do game with XNA in C#, but I don't know, in the future, XNA has also developed. Thanks all.
If you like using XNA to develop games, but want a currently supported library with a decently supportive community, I would check out MonoGame. They're basically the same tool, with slight differences but with the same basic functionality.
From the site:
MonoGame is an Open Source implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers on Xbox 360, Windows & Windows Phone to port their games to the iOS, Android, Mac OS X, Linux and Windows 8 Metro. PlayStation Mobile, Raspberry PI, and PlayStation 4 platforms are currently in progress.