(Yesterday, 3:49 pm)X919 WGR wrote Only reason I could see is for them to replace the remaining 3 Ex East Yorkshire Gemini 1s that are used on the 850 Scholars or the Ex Manchester Gemini 1s at Washington
GNW have 7 of that batch currently out of service with the Electroliners taking their place, would'nt be surprised if all 7 of the 61 plates transfered across to replace the 4 remaining B9 G1's along with the 2 enviros dual doors still in service. There are also 9 60 plates B9s also out of service.
You also have the 3 older versas still in service that could be withdrawn, with deckers taking place on other services and cascading other single deckers.