Right now our total focus is completing and delivering Java EE 8 and Java SE 9, and their new capabilities, and we hope to deliver them this summer. I expect we will have more to say about our overall Java strategy and plans at JavaOne following Java EE 8/Java SE 9 delivery.
In addition, I also plan to release Mojarra 2.3.1 with support for Servlet 4.0 push and integrate that into GlassFish 5.0.