Please correct me if I'm wrong, but unless POET also uplists to the main TSX board, you don't have to do anything because it will still be trading on the Venture. If they move to the TSX, you won't have to do anything either. It's an advantage to be on different exchanges with different currencies. There's no reason to drop an exchange (although I don't know why you'd need to keep trading POETF on the OTC).
Please share or comment if you don't agree or have altering opinions.