If the current state it's in is the final state of the game at release, I'd have a couple weeks of good fun then get bored of it. But the core feel of Tribes is there, with enough TLC put in then I could imagine it being a fun mainstay and worthy successor to the series.
I left feedback suggestions for the devs to allow custom third-party servers and a custom mode creator (Halo Forge-like; I remember there being something like that in Ascend) for the best chance at longevity of this game.
Definitely threw me back to the days I played Ascend. Having to lead your shots and stuff.