Best answer by Jonathan I
Nobody will know until Koodo announces it, usually on their FB page and then here.
The thing is Koodo has to get approval from Telus to carry the device, so a lot of times Telus will keep it to themselves for a while to garner their own sales first, or sometimes it remains exclusive entirely. They carry the Z3 but so far haven't let Koodo carry it. They also have the higher storage model iPhones and colors of phones Koodo doesn't have.