Tribes: Ascend, we hope you're happy with the current state of the game -- or that you like SMITE just as much. In response to a user inquiry, Hi-Rez Studios head Todd Harris announced that there are no major updates planned for the game within the next six months. The studio's current resources are devoted first to SMITE, then to Global Agenda 2, and beyond that a full-on sequel to Tribes: Ascend is more likely than a major content patch.
While Harris goes on to mention that there are additional maps being worked on, he states there is no definite date for release, if indeed these maps are ever released. While support for servers and the existing game is not in question, the long-term health of the community without further content is questionable. And with no developers working on a sequel, even that seems rather unlikely at this point.