Release dates from the Bachmann website:
Nov/Dec: GWR 94XX, Class 37, Class 40, 4CEP
Dec/Jan: Class 20/0 (BR Blue & Railfreight Grey)
Jan/Feb: Class 20/0 (BR Green), Class 20/3, 14T Tank Wagons, MFA, TEA, Ashover Coaches
Feb/Mar: LNER Thompson full brake, HRA