Jumpjin
The full 10 mins is still in place, but all going well by the end of next month we'll have introduced the reduced longitudinal separation minima (R-LONGSM) within Shanwick.
Gander were due to come online with this at the same time, but their new kit has pushed back their own introduction; therefore it'll only apply to eastbound traffic once our side of 30W initially.
It will also only be applied between those flights with CDPLC and ADS contracts, therefore if the guy 5 mins ahead and 1000' above you doesn't have both these boxes ticked then I'm afraid it won't help those, like yourself, who do.
I understand that in a couple of years carriage of CPDLC and ADS will become mandatory within a specific level band therefore this, plus Gander being up and running, will make the R-LONGSM procedure far more benefitial than its initial staged introduction might suggest.