I don't know if I would call it a framework per se, but absolutely we want to break off individual pieces that can be separately re-used and make them available for everyone. In the meantime if you see something in particular that you're itching for, open a new issue and let us know. You may also want to check out the library of modules here. https://github.com/Automattic/wp-calypso/tree/master/client/...