Hi Rez has confirmed that the Closed Beta for Tribes: Ascend will begin on November 4th.
Hi Rez boss, Todd Harris, confirmed the date in an interview with Cyberlink which you can watch here.
The Tribes: Ascend Beta will include four multiplayer maps, two game modes & three vehicles. The maps can support up to 32 players and there is a choice of 12 classes.
When released, Tribes: Ascend will be Free to Play with money being made through the sale of load outs, allowing players to buy various guns, explosives and character augments.
If you want to apply for the Tribes: Ascend Closed Beta you can do so here, on the Tribes site. Below is a gameplay teaser trailer.
It looks pretty impressive.