Concentrating on the lines we currently have rather than any new branches, I'd like to see: Based on the 6 engines we have: Some variation in the named expresses' stopping patterns, with one being non-stop. Some trains continuing to terminate at Tidmouth (nothing stops there). Thomas's special coach: one of the expresses has a through coach onto Thomas's branchline. With new locos: Henry takes 50% of James's services, with them both taking on mainline freight. Emily remains passenger only. Toby takes over quarry work, freeing up Diesel and particularly Percy to do more shunting at Knapford. Donald and Douglas adding more mainline freight and other tasks. Some of the stopping services should call at Ballahoo.
Deffo utilise Tidmouth and Ballahoo stations!!! hopefully new shunting challenges at Wellsworth, Henry’s Forest, Crosby etc
What about Toby running on Thomas his branchline? Duck on his own branchline? Edward on his branchline? Shunting with Bill and Ben? New stories to play...
Henry would be another engine who could run the mainline, particularly with the Flying Kipper. Edward would have his duties at the Brendam Branch. Duck would have his duties on the Little Western with help from Oliver. Toby could assist with work and shunting on Thomas’ branch line/the quarry including taking workmen to and from the quarry in Henrietta.
Honestly I'd rather see the current routes fleshed out before they add new routes, as much as I'd like to see Edward, plus the Western engines. I was thinking about the Flying Kipper too, and we couldn't do it without Tidmouth Harbour, as Knapford Harbour doesn't connect directly to the mainline the way you see in the Flying Kipper story. Of course they wouldn't be able to match the original, as WoS doesn't do crashes (yet?).