NARP has some news about a potential Detroit - Windsor Thruway bus connection being set up.
https://www.narprail.org/news/blog/narps-news-from-the-front-lines-update-on-the-amtrak-via-connection-at-detroit-windsor/
No specific details yet, but the guess is that it may be up and running by the end of the year (2017). I haven't checked and compared Amtrak and VIA Rail schedules to see how well the Detroit and Windsor times match up.
https://www.narprail.org/news/blog/narps-news-from-the-front-lines-update-on-the-amtrak-via-connection-at-detroit-windsor/
No specific details yet, but the guess is that it may be up and running by the end of the year (2017). I haven't checked and compared Amtrak and VIA Rail schedules to see how well the Detroit and Windsor times match up.