I guess that depends on what will WildFly be in the future.
Will it become an umbrella project with subprojects with modules? ->
Will it definitely remain just AS / platform? Both schemes possible
WildFly *IS* application server and not name for new community.
this is exact debate we had earlier in this thread.
only projects that are almost part of AS are allowed to use org.wildfly, like jandex but not other projects.
org.jboss is stil the golden standard for jboss community projects