I doubt we will see it dissapear, simply because of difficulty in justifying a projectile based "shock beam" or "link-shaft". Reducing it greatly would make the remainder easy to balance, and that would be good.
Personally, I think shock beams and such makes it too easy to take out a vehicle on foot. I mean, a foot solider, vs a guy in a fighter craft shouldn't have such good odds of winning. As well, certain weapons, I feel shouldn't totally destory the vehicle, and retroactively, the pilot as well. If you took down a raptor with a minigun, disabling the vehicle, what again would prevent the pilot from bailing afterwards? I think there are some interesting un-thought of balance issues with vehicles, but that is the least of my concerns.
With average pings dropping though, reducing it and or nerfing it is a must. As long as this game remains somewhat "Sci-Fi" and retains the ASMD, it's elimination can't really be justified in the story content.
...and boogs is very correct about Tribes. You could very efficiently take out flying vehicles with a projectile based chain gun, you just had to triangulate a bit.
OMGSKILLHAX