Hi ! , congratulations for your Java web framework , and CUBA Studio facilitates rapid application development.
I think , it will a good idea that CUBA Studio could generate a jhipster-jdl.jh file to facilitate the deployement for the portal!!
That’s an interesting idea, maybe someone will do it.
As for facilitating development of a portal, take a look at the new Polymer UI that can be created with the platform and Studio version 6.4. We are going to keep moving in this direction.