This is my opinion but I would really love to see another route in Wales, like Swansea to Carmarthen or Swansea to Cardiff because I would love to see my local town Swansea in TSW6
Would like to see a modern version [2024] of Crewe. I'd do Crewe to Holyhead with trains like the 158, 197, 805, [805 Deluxe Train] 323, [Layered from Manchester Airport Commuter] 390 [Layered from WCML: South London Euston to Milton Keynes] 350/1, [Layered from WCML: South] and the 150/2 [Layered from Cardiff City Network] I think this would be a great route throughout the heart of North Wales and North West England too. I'd expect the 484 would be put into a TfW livery operating the Borderlands line Between Wrexham Central and Bidston and see the TfW 150 to be put into a Northern livery at Chester for trains to Leeds and Manchester Piccadilly. I heard many people like RichyRail has asked for this for the last 2 TSW's. I think this is going to come out soon but not straight away.