The total delay was about 2 hours give or take a few minutes. It took about 4 minutes for the captain to briefly explain what happened and that "they were on the phone with maintenance to determine next steps". It was clear on taxi that the brakes were affected with a severe "chattering" effect when the plane slowed in a few spots back to the gate.

After we arrived at the gate a full inspection occurred when we were informed that "the recommended wait time for brake cooling is about 60 minutes" after a high-speed abort. It was another 15 minute before we got an update that brakes "were still too hot" and that supplemental air conditioning was being applied to the brakes. It was somewhere after the 90 minute mark we were eventually cleared.

We never were allowed to disembark and my original post timing was because of available in-flight internet service.