Update.

I received a tentative refund on my Credit Card from AA in the amount of $1,642.75. This is not the full amount charged by AA ($2,407.90) for my flight on Jan 1st but is much better than nothing. I'm not sure how they arrived at that figure but am assuming that AA has agreed to a refund minus certain fees. In the case this is a forced refund from AA, Chase mentioned that AA would have 45days to respond.