Hopefully your line should benefit significantly from vectoring when (if?) its rolled out nationwide.
Is there any reason its still only in BDUK areas? Is there extra equipment needed in the cabs like a vectoring controller or some such?
Yes additional hardware is required.
I don't think there will ever be a national rollout of vectoring for FTTC.
OpenReach finished their vectoring trials a few years ago and nothing came of it.
They don't want VDSL2 to be above 80Mb (they could make it 100Mb tomorrow by removing their cap) so a big benefit of vectoring would be wasted.
ECI cabinets don't do system level vectoring. So if OpenReach did rollout vectoring there would be even more of a 2 tier network.
It's only used in BDUK areas because it helps raise distant properties over the 24Mb SuperFast targets.
Deploying vectoring nationwide would be a huge expense for absolutely zero extra income.