Talks are ongoing with Mark Bunn and Jason Crowe to extend their current deals.
"We're in negotiations with two or three players about extending their time at the club," said Gray.
"Danny deserves his extension because he is a sought-after player. You saw his commitment at Brackley when we asked him to come on for the second half.
"It's great news for the club and the supporters that we're going to have Danny here for an extra year."