As previously rumoured in comments, the Kitchener rail service begins on December 19. GO will implement this with two trains a day.
In the morning, the existing 6:47 Georgetown trip will originate in Kitchener at 5:52. A new train will be added leaving Kitchener at 7:10 and arriving at Union at 9:08.
In the afternoon, two existing Georgetown trips leaving Union at 4:45 and 5:45 pm will be extended to Kitchener arriving there at 6:42 and 7:42.
The line will be renamed the “Kitchener” line.