Since now 60532 Blue Peter has returned to traffic I guess she will be on the Fife Circle Line with Blood & Custard Mk2E coaches as The A2 loco was based in Scotland during BR Days near Haymarket in Edinburgh hauling the Fife Coast Express
TSW steam is dead. DTG won't do anything more to it, and 3rd parties seem unlikely to work with the botched system so I'd say there's no chance of this coming for the foreseeable future.
Which is why we need a sticky at the top of the board, politely advising people not to post suggestions for anything steam, sadly.