You are correct there is currently no E195 based in ABZ but I think you'll find one based there to operate this schedule. Looks to me like a similar operation to INV.
Morning crew operate:
ABZ-LGW 0645-0830
LGW-ABZ 0905-1045
Afternoon crew operate:
ABZ-LGW 1230-1410
LGW-ABZ 1445-1625
ABZ-LGW 1705-1845
LGW-ABZ 1920-2100
There of course aren't any crews based there at the moment so maybe a small base is on the cards. Otherwise, permanent nightstopping crew would be needed for the first rotation. I'm sure we'll find out soon enough....when/if bids are invited for 195@ABZ