There's really only one way this could happen, and it's probably still way out of the realm of possibility. Either Rogers or Bell (probably Bell) decides they want to pull out of MLSE and run their own franchise within the boundaries of the GTA. Either expansion or moving one of the league sad sacks ( although with ARI already pulling up stakes, not sure who that leaves, TBH. CBJ maybe?). The two entities make a territorial agreement, money changes hands, palms greased, etc. New TO Team plays in SBC until such time as an arena is built, in Markham, Downsview, Vaughn, etc...and then , of course, goes on to win the Cup in 5 years, still before the Leafs do!