Just a friendly reminder that the EMV Express Transit option is still missing in iOS 12.4 Public Beta 3 (16G5038d). iPhone transit users who use TriMet or MTA should stay away from the beta.
The feature will undoubtedly be back for the final release but, again, heavy duty under the hood Wallet construction continues in the run up to the Apple Card release and iOS 13. We’ll get lots of new Apple Pay Wallet details at WWDC19.