URL handling is by far the biggest topic on our road to TYPO3 v9, and the most wanted functionality to be integrated in the TYPO3 Core.
We'd like to keep you updated on what happened so far and what we're working on next.
This feature sounds really great! Happy to see so much progress in this area.
One thing I would like to ask: Can site configuration only reside in the typo3conf/sites directory or will it also be possible to provide them with my site package, where I also would store the TypoScript setup and templates, and already have a deployment and QA workflow?
All page translations were previously stored in the database on "pages_language_overlay". This has been migrated into the main "pages" database table with TYPO3 v9.0