No they likely will not be fertile next year. The only way to get fertile eggs would be putting the hen with a mature male. Since your male would only be one next year, he will not be ready to breed. At two years of age he will be in full breeding plumage and capable of fertilizing eggs. And yes, a chicken style best box will work. My ruffed pheasant hens are very accepting of nest boxes whether they are on the ground, mid level, or a few feet off of the ground.
Edited by Blue Creek - 10/1/15 at 7:40pm