I think it will come back, someday. It should, but they need to stick with they original concept.
Everywhere 'The Mole" was made it was a huge success. In the Netherlands their up to a 10th season. Why is this not happening in the USA? Because it was on crappy times.
I'm from the Netherlands and I would even watch 'The Mole USA'.

We should mail more lemon heads :P.
We shouldn't let 'The Mole' die without putting up a fight!