After seeing Quinoa the idea came to me that something similar could be done with GWT's CodeServer mode. After a lot of messing around it finally works and you can use the CodeServer to serve GWT resources while using Quarkus to serve the rest.
Get CodeServer working as a build stepEnable live-reload on the CodeServerTransparently proxy requests to the CodeServer- Get GWTc to work as part of build process for jvm/native images