Sodor's White Christmas

Sodor's White Christmas is a special which will be released in December 2018.

Characters
The rest of the other characters are likely to appear.
 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Toby
 * Duck
 * Donald and Douglas
 * Oliver
 * Emily
 * Lady
 * Nia
 * Rebecca
 * Diesel 10
 * Splatter and Dodge
 * Sir Topham Hatt