Spring 2022 is the timeframe for adult fare passes if the testing goes well. There's still a lot they need to sort through behind the scenes; scanners slow to respond or broken altogether, making sure taps register promptly on the back-end, ensuring that the fares and caps are calculated correctly across the region, etc. The team will report the pilot results to Edmonton's council at the end of March, and from there they'll decide whether to open it to adult fare users, or extend the pilot further. Once adult fare users are onboarded, they'll make sure other kinks get addressed before gradually phasing in other fare groups (again, the *plan* is for that to occur over the course of 2022).
If it makes you feel any better, this is the only round of testing other than U-Passes so far; the fare pilot just got delayed from summer 2021 to winter 2022, and so they could use a lot of the original volunteers.