Teiid 8.4 CR2 is now available: http://www.jboss.org/teiid/downloads
This CR standardizes all ws (soap and binary) handling through CXF and fixes quite a few other issues. The built-in RESTEasy patch has been removed in favour of having user update their AS instances - see the download page for the instructions. The final release should occur in about a week barring any significant issues that push the release back.
Work on Teiid 8.5 issues should begin shortly. If you want to have something considered for inclusion, just leave a comment on or vote for your issues.
The Teiid Team