I haven’t seen any posts regarding this topic in a while so I made an account so I can bring it back into discussion. The Intercity 225 is a really unique train in the UK, and it would be a missed opportunity to not add it as an add on to the ECML or even as an expansion. As many probably know the life of the 225s coming to an end due to LNER’s new tri mode trains taking their place in the next few years so now seems like the perfect time to add them back before they vanish from the ECML forever. An alternative would be to add them with a new Wales route, as I believe Transport for Wales acquired one from LNER when some were being retired. Overall I hope this suggestion is put into consideration and I hope you all agree too!
If I had a penny for every time someone mentioned the Class 91, I'd be rich. Really makes you wonder why TSW doesn't have it yet.