From the last 10 years experience, Armstrong Powerhouse have been consistently the best at releasing the top quality products. Most notably for their sounds and amazing physics. They should be a part of the team to work on the sounds and physics of locos and content because they would totally transform the player’s experience to an entirely new level.
They have done stuff for TSW, they worked on the 377 for DTG. That said I've had the impression that AP would rather not help make 'vanilla' DTG content too good as that would erode their own market of premium price enhancement packs.
That’s a good point. I for one would be more than happy to continue to pay for AP Enhancement Packs for TSW2. That would probably be a better solution but I would imagine working with TSW2 files and the unreal engine compared to TS2021 coding and files would take some getting used to. I’d definitely support them though. Wouldn’t you ?
What would they do to the trains other than sounds? Enhancement packs exist because DTG's trains in TS1 are generally rather basic, so AP come along and make them more advanced. Trains in TSW are way more detailled.