I just had an idea for a new Thomas DLC. I call it "Thomas' Winter Wonderland" and imagine that Dovetail Games added Percy as a new DLC. It'll be good as a Christmas storyline. Here's my idea: Thomas and Diesel were doing one final event before going back to Sodor for Christmas and Sir Topham Hatt has arranged a special friend to help Thomas and Diesel with the extra work and that would be Thomas' best friend, Percy. As the West Somerset Railway plan their own Winter Mail Train and Mr Peters thinks that Percy should be the right engine to do that job as he know Percy loves carrying the mail. Then before the engines travels back to Sodor, Percy rescues Diesel with some building materials for the Santa event. Then after it was delivered, all 3 including Diesel triple-headed back to Sodor for Christmas after the West Somerset Railway is closed for the winter holiday. But the first thing we must do is learn to drive Percy first like Thomas and Diesel. I hope everyone loves this idea.
A better suggestion is to syphon these off into a new separate game. That way TSW devs can concentrate on the serious content with a seperate devoted team for Thomas content.