Some brief updates:

G-GATP & G-GATR swap over at MAN today
G-EUPK appears to be due back from MAD today or tomorrow
G-GATK is showing some signs of life at MAD, so perhaps it is due back to LGW before the end of the year
G-EUXK left MAD yesterday bound for LHR but had to return to MAD shortly after take-off, but it seems that is due back at LHR in the coming days
G-GATL continues to have short test flights out of LGW (yesterday was another one) but still no sign of a return to service
G-ZBLG had 2 more test flights at CHS yesterday, so I would expect delivery soon!

Wiki updated with all known locations of aircraft as of EOD on 21st (but G-EUPK may change from MAD to LHR if a flight plan is filed)

Pilot37