I heard they don't go back to the original offer. When you get an alternate, and you really love the original offer program, best to accept what you have, and then apply for your original offer as your major again in the 2nd year of the alternative study, there would have been hope for you...a friend did that.
University of Toronto Mississauga - Psychology Honours, Bsc. (Accepted)
University of Guelph - General Psychology, BA (offer)
University of Waterloo - Psychology Co-op, Bsc., (offer)
Wilfrid Laurier University - Psychology Honours, Bsc (offer)
Ryerson University - Psychology, BA (offer)