I note from the Glasgow thread they are losing their GDN service with Wizz scaling back big time on their UK regions ops.
Looks like ABZ-GDN is staying and will be twice weekly as already known but ABZ-WAW is dropped from 19th January.
My anecdotal evidence is I flew back on the A321 GDN-ABZ a couple of weeks ago and it was rammed with 214/230 seats filled. WAW outbound less busy with 151/180 taken.
Thanks Brexit