Nothing here yet.
Also important to note that, they're offering a grandfather period where you can import cards that you already have in Wallet into AP, even if those banks don't directly support AP yet. If you miss the window to do so, you'll have to wait until your bank is on the list of supporting banks.
If you think you're going to want to use AP, it's a good idea to add cards/banks to Wallet first, because, according to some clarification that one of the blogs (sorry, forgot which one) got from Google says that, if the bank isn't supported, it will auto-reject adding them if they weren't already in your account with Wallet.
Also, Google had no answer for that same blog as to how long this grandfather period will last.
