If tuition credits from BC can not transfer to ON while working there for a couple years. Will they still be available when returning to BC or do they disappear forever?

The elimination of the tuition credit in Ontario (and some other provinces) is a recent change. There seems to be conflicting information on what will happen if you move out of Ontario and back to your original province. Some tax experts believe the credits will be lost, but others disagree.

In this case it may be best to contact the BC government and see how they plan to handle this situation.