Here is the latest update from a previous post on where the A321Ts currently are (active/storage, etc) as of 24 Feb 2021.

4 aircraft that are currently operating
10 aircraft that ferried to Greensboro/Tulsa/San Antonio months ago
2 aircraft that are confirmed in storage
1 aircraft that will be scrapped

As of 24-Feb-2021: (data from FlightAware & FlightRadar24)
N101NN: Currently operating transcontinental flights
N102NN: Ferried to San Antonio on 5-Nov-2020 as AA9804 - Likely in storage
N103NN: Ferried to San Antonio on 5-Nov-2020 as AA9793 - Likely in storage

N104NN: Currently operating transcontinental flights
N105NN: Ferried to San Antonio on 5-Nov-2020 as AA9787 - Likely in storage
N106NN: Ferried to Tulsa on 21-Oct-2020 as AA9810 - Likely in storage

N107NN: Ferried to Greensboro on 2 October as AA 9789 - Likely in storage
N108NN: Ferried to San Antonio on 6-Nov-2020 as AA9797 - Likely in storage
N109NN: Ferried to Greensboro on 30 September as AA 9789 - Likely in storage

N110AN: Ferried to San Antonio on 4-Nov-2020 as AA9787 - Likely in storage
N111ZM: Ferried to San Antonio on 4-Nov-2020 as AA9794 - Likely in storage
N112AN: Stored at Tulsa, OK ( since 14 July 2020)

N113AN: Currently operating transcontinental flights
N114NN: Stored at New York JFK after incident in April 2019 - Will be scrapped
N115NN: Ferried to San Antonio on 4-Nov-2020 as AA9792 - Likely in storage

N116AN: Stored in Davis, CA as of 20-Nov-2020
N117AN: Currently operating transcontinental flights

There has been talk that American is opening up a slew of flights between JFK and the West Coast market, plus the announcement of SNA adding the 32B’s. ExpertFlyer data backs this up, as there is ample search results returned in the "Flight Availability" search that suggest many of these will be activated in the coming weeks.