If the Prodasham puja is for Nrusimha, certainly it must be continued. It is good if you could go in person to the village. Else, you can sponsor materials for Nrusimha tirumanjanam. Whenever it is possible to visit on the day of Pradosham, do so.
If you are sponsoring at other temples for other demi-gods, you need not continue that. There is no harm if you don’t continue.