The idea is to have the next version of GateIn (3.2) running on JBossAS6. To have it fully 'certified' there are several components in the works to be tested with JBossAS6 - specifically WCI, and PC. Then, to have everything packaged, and out-of-the-box, there's work on the packaging part of the build.
Of course, only products like EAP / EPP are officially supported by RedHat. Also, EPP is tied to EAP, so I think there would first have to be EAP based on JBossAS6, and then a next EPP maintenance release could be based on that. As for JBossAS6 making it in EAP see this link: http://relation.to/17976.lace#comments.
Thanks for the info. I was a bit vague, I wasn't looking for commercial support, more like "in trunk" so people can start reporting issues without having to assemble it themselves.