Airlineroute are reporting some 77L conversions to two class 38J/268Y.
https://www.routesonline.com/news/38...ervice-in-s18/
Some routes quoted are not all long range either with BOM & KHI listed which for UK purposes brings into the obvious scenario of the possibility of restoring BHX's third flight (which only struggles outside of school holidays), a Manchester 4th flight, a Glasgow third flight, Newcastle second flight or even another Gatwick also of course adding Cargo capacity.
The routes announced indicate only two to three aircraft but at 306 seats a pretty useful configuration for additional frequencies or new routes.
I can't find any official sources but I suppose they have obtained the seat-map data in GDS?