VLM is planning a twice-daily ABZ-LCY operation for the summer and a twice-daily F50 service to Rotterdam.
VG231 arrives from RTM 08:15
VG232 departs to RTM 08:45
VG237 arrives from RTM 18:15
VG238 departs to RTM 18:45
VG461 departs to LCY 06:30 (BAe146-200) from 6 May
VG462 arrives from LCY 10:25
VG467 departs to LCY 16:45
VG468 arrives from LCY 20:40
Slots in place at LCY
No sign of anything Polish, but I'd say VLM looked like a pretty strong bet for both routes based on the above.