An alternate ending was released in the ninth season DVD. In the alternate ending, Tracy Mosby is still living when Ted is telling the story in 2030. In the video, future Ted is heard saying, "... When I think how lucky I am to wake up next to your mum every morning, I ca n't help but be amazed how easy it all really was... '', indirectly stating that The Mother is alive. The video ends right after the train passes at Farhampton station and credits start rolling, implying that Ted never went back to Robin as he lived a successful married life with Tracy Mosby.
who married ted mosby in how i met your mother
Tracy Mosby Tracy Mosby