From a different thread:
Yes, but no one had the experience or support to actually start something like it.
When people tried to come up with templates or framework, at best only a very few people supported the project, but not enough to really make it live.
You seem new to these forums (relatively), as there have been attempts, but no one followed.
Some:
- An Intro to my Project - game3 core
- BGEz Framework - Two - #4 by wkk
- FPS Template
- BGE FPS Template 12/28/06
- FPS Template
- FPS Template Limited python
- Multiplayer Server Lobbying
- Library for common bge tools
And I have missed a lot of others.
What is usually lacking is at least one of: experience (=quality) / support (+feedback)
So if you feel like you can setup a really great new template and have people contribute/give feeback to it then by all means do!