I'll start with that.
With Visa, as it's currently envisioned, they will be higher, because Visa has set their interchange level at a level that, in our opinion, is too high. They believe there's value brought, and there is value brought in both scenarios. For example, if you buy something online and you dispute that it was you, with Interac you're more of an unsecured creditor. Visa and MasterCard have a policy that will protect you, so there is definitely value there.
In Visa's case it will be more expensive, upwards of maybe three times more expensive on average. It'll vary by merchant. With MasterCard it actually wouldn't be more expensive, because they've committed, so far, to holding consistent with or lower than Interac.