Wikis can make the welcome notification link to a specific page. 
The new version of MediaWiki will be on test wikis and MediaWiki.org from November 17. It will be on non-Wikipedia wikis from November 18. It will be on all Wikipedias from November 19 (calendar).
You can join the next meeting with the VisualEditor team. During the meeting, you can tell developers which bugs you think are the most important. The meeting will be on 17 November at 19:00 (UTC). See how to join.