IF you used the 2020 program to file the 2019 - 2020 return then you can put the 2021 form 1041 on extension and WAIT for the 2021 program to be functional next year.
If you use the 2020 program you will have to start a NEW return for the same trust ... you cannot transfer the prior year information.
If you will only file ONE 1041 ( a first and final) then you can put the return on extension and finish the return when you have the information needed.... then the 2020 program is all you will need to use.
