The latest on the PRIME update as passed along to me today by the ever helpful CIHY...

The aircraft in service with New First:
747-436: G-BNLK, G-BNLO, G-BYGA, G-BYGB, G-CIVF, G-CIVG, G-CIVH, G-CIVM, and G-CIVN
777-236: G-VIIU, G-VIIV, G-VIIW, G-VIIX, and G-VIIY
777-236ER*: G-YMMK
777-336ER: G-STBA, G-STBB, and G-STBC

Confirmed aircraft due to re-enter service with New First soon:
747-436: G-BNLV, G-CIVI, and G-CIVO



* The 777-236ERs (G-YMMx) will have 12 First seats, as follows

1A 1E/1F 1K
2A 2E/2F 2K
3A
4A 4E/4F