Correct...TTX is still using the 2019 max values and % amounts in their "Unfinished" NJ forms.
The NJ forms are not expected to be final and all values updated to 2020 values until after 28 January....so come back ~1 Feb to check to see if the errors still exist then.
Don't bother to attempt filing either the Federal, or the NJ forms, until after the IRS starts processing tax submissions ~12 Feb...or later..
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
