It’s too early to jump to any conclusion about the future of Cocos2d-x community, as it’s an fully open source project, actually nobody can really decide its future.
I totally agree with you, in Cocos Creator, we have no intention to be closed or to force user to follow a book of rules. Actually, we just opened source our engine framework:
https://github.com/cocos-creator/engine (You can star it now )
It’s not so convenient with v0.7 yet, but in v1.0 and coming versions, we spent and will spend a lot of time to bring users a good experience on extensibility and flexibility.
In v1.0, users will be able to customize templates, engine framework (both web and native). There will also be the first part of plugin system.
In the future versions, we will include a much compact version of Cocos2d-x, a complete plugin system to extend the framework, the editor, even the asset library.
Hope you guys stay with us for the coming versions.