Still in the realm of possiblity and that makes it vulnerable. I hope for everyone's sake that it never is attempted but resting on it can be dangerous.
Statistically, this is in the realm of possibility that also contains things like asteroids falling from space and hitting me, personally.
There have been attempts to institute forms of 'gun control' in VT. They've all immediately raised the ire of gun owners, who've made a loud complaint and all been unceremoniously dumped before passage or overturned by the State Supreme Court.
I'm not arguing for complacency here. I'm just saying that for the foreseeable future, gun control is a non-issue in VT. There just isn't any push for it. It isn't on anyone's agenda.
VT is a bit of a statistical outlier. We've got screaming liberal politicians up here (the kind that make Obama look like the Nixonian he is) with A (and even A+) ratings from the NRA.
Some folks in Chittenden County would enthusiastically agree to gun control, if it came up, but it just doesn't come up, since the VSC last whacked it down. It's a non-starter, and people have better things to do with their time.
The biggest possibility for gun control in VT is some sort of federal reciprocity law that imposes minimum standards on all states. It's the reason I opposed the Thune amendment. Vermont has the right idea on RKBA. We don't need the Fed getting involved. The rest of the country will just have catch up with us on their own time (with congratulations to Arizona on joining the club).