Seat map previews on the AC website load noticeably faster on my desktop than they did before, especially when checking J. It's almost instant.
I don't have eUpgrades or status levels to worry about like all of you do, so my wish list isn't as pressing. I would love for AC to be able to generate mobile boarding passes for a ticket that starts with an AC flight and then has a connection to another *A carrier. I'm not sure if Amadeus is the common IT system across the entire *A now, but hopefully mobile boarding passes will be possible at some point in the future among an itinerary of airlines that do share it as a platform.