After a fruitful discussion, routing is a large topic, and certainly a different approach than the current URL rewriting approach by RealURL and CoolURI. In order to get proper routing integrated, a future-proof way with a proper Request/Response concept is needed. The planning phase and concrete steps for this concept has been started already and wis based on the PHP-standard PSR-7. Some other prerequisites for the routing are already in place in the TYPO3 CMS Core, like a clean Request Handling foundation for all entry points in the core.
This is a companion discussion topic for the original entry at https://typo3.org/article/announcing-typo3-cms-72-continuous-excitement/