The 30-year-old actor will soon reprise his role as Connor Temple on the ITV1 sci-fi show, which was recently given a surprise recommission for 13 more episodes.
In an interview with IESB, Potts commented: "It's great coming back to play him. And then, also, I get to work with my fiancée Hannah Spearritt. When it was cancelled, it was such a shame because we enjoyed working with each other so much and we thought, 'We might never do that again'. That made us sad.
"But, we're going to be able to do that again. And we actually went out for dinner with all the producers the other day, and the storylines they've got and the stuff that's going to happen this time is going to be really good. It's very shocking as well."
Potts also said that he always had a "gut feeling" the show would come back and is "really pleased" that he turned out to be correct.
Filming for Primeval will begin in March ahead of a 2011 return.