“Erm, I don’t want to be coy,” he said to the Guardian.
“But we’d want to see how these three films are received, then decide whether we feel there might be more to do.”
Meanwhile, his co-star Roger Allam recently told Lorraine Kelly season eight is “unlikely to be the last”.
Endeavour seems to have remained just as popular and well-received with its eighth run, so hopefully ITV rides the momentum for at least three more episodes.
Endeavour season 8 will conclude on Sunday, September 26 on ITV.