This trailer offers an audio interview with Hi-Rez Studios about Tribes Ascend, their upcoming continuation of the TRIBES series of multiplayer shooters (thanks Evan). This includes word on closed beta testing, as here is what Todd Harris has to say about their plans:

We have a date, you heard it here first. The team is working hard for closed beta to start on Friday, November 4th, so, a few weeks away. We plan on announcing that more broadly next week, and as you may have known if you've been following us, we wanted to start in September originally, that was kind of our original plan, but there were a few adjustments that we wanted to make before beta.

Specifically, some things we've been working on are character progression elements, those were things that weren't in alpha, but will be in beta, we'll maybe get into details on some of those later, and secondly, with the changes or improvements based on feedback from the alpha testing group...Disc jump strength was one, some challenge that people had in chasing down flag cappers which is a big part of the game, basically ability to quickly gain momentum from a standstill, and even overall speed of the game."