It seems like PLE is the only store currently that have AIB cards listed, on a FCFS pre-order basis, similar to what they have done with the 3080 launch.
They are priced as the following:
$1489 - XFX Speedster MERC 319 RX 6800 XT - Review by OC3D.NET
$1289 - XFX Speedster MERC 319 RX 6800
$1499 - Gigabyte Gaming OC RX 6800 XT
$1299 - Gigabyte Gaming OC RX 6800