Thorntail with THORN-2126 has intermediate versions, such as the 1.5.3 config-api, on wildfly 14 - but moved to WildFly 15 for the release. I'll experiment a little if Teiid 12 is compatible enough to build Thorntail 2.3 support directly. More than likely though we'll need to wait until Teiid 13 to sync back up.