The US had "Skating With Celebrities", but since hockey isn't as big a deal in the US as it is in Canada, I would be really surprised if a US network picked up this show. There didn't seem to be much interest in buying it when it was on before, even though other CBC shows have been bought by US networks (e.g. Murdoch Mysteries, the most recent version of Anne of Green Gables).
I think Battle of the Blades could do really well internationally and build a cult following (like Great British Bake Off). However, obtaining music rights would be a nightmare, which is why I don't think it will happen.