Would be a perfect fit for a modern british route like the modern german routes, Would fit into the games 30 - 40 min window perfectly plently of stations too stop at... plus modern trains the class 700 and 717 with Thameslink livery, very busy line IRL. Dovetail must already have the go ahead from govia to do the upcoming southern pack so cant see the liscencing being too much of a hassle too obtain. Plus have the possibility too add in LNER locos aswell as a futher loco pack .
I think with the Govia Southern licence it may include the use of all Govia branding which includes the Thameslink, etc