At the very top of my list of desired GWE improvements are... Period accurate dlc both playable and AI including, but not limited to, Classes 165/1, 180, 332, 360/2. ALL of the branches, both passenger and freight, between Paddington and Reading. Extension to Didcot, Oxford, Swindon or Newbury would also be nice but is a secondary concern to me with the missing branch lines of higher priority in my opinion.
Excellent idea overall from what I am seeing looks like you want Just Trains Western Main lines rebuilt for the game which has this segement of the GWML. If you use railmiles it's 77 miles end to end
Shouldn’t really be an issue since they have obtained London Overground and Underground licences. And we don’t know if they have a TFL licence that covers all the operators
Why is there a bakerloo train at Ealing station? Are dovetails planning to work on this GWR at Ealing station or what?