I noticed the following in the 2024 TT Catalogue
The Scotsman has the SKU TT1001 and The Easterner has TT1002, but the Intercity 125 HST has the TT1004.
Looks like there is a nother Train Set with the SKU TT1003 underway, the question is just; what will it be?
Would expect something more "modern", or a Era 4 Set with a Stanier Coronation Class in BR Express Blue and with 57' Coaches.
Or maybe a Set with a new, unreleased Loco.