Tribes: Ascend is getting updates again, with the first update hitting the test server soon. So what are you expecting? A bit of balance adjustment, a new map, or the complete gutting, overhaul, and major alteration of the game’s class system? The third is what you’re getting, at least with the first build available for the test server. All of the classes are being rolled into three armor weights, with every given weight being able to equip the same basic number of weapons.
Weapons are also now divided into classes to prevent players from equipping, say, four different kinds of rocket launcher at once. Each class now has nine loadouts for free, with several default starting weapons made free for everyone. The stated purpose of this particular patch is to see what balance issues are caused by such a drastic overhaul so those issues can be corrected; hopping into the test server once it becomes available (on or before September 14th) will certainly help.