We realize that WildFly 8.2 support is a highly desired feature and we're planning a follow on community release to support it. My guess - and it's just a guess - would be that that would be in the October timeframe or after. If a Wildfly 8.3 comes out during the time between now and then, then Wildfly 8.3 would be the release we would do primary testing on.
SwitchYard 2.0 does support Wildfly 8.0, so that's the container we'd suggest upgrading to.
For SwitchYard 2.0, no testing was done on JBoss 7.x. Support for JBoss 7.x was deprecated in the 2.0 alpha/beta/CR's in favor of Wildfly 8. There shouldn't be any confusion there.