Fenlon has not featured for the Dons for over a month and will see opportunities for inclusion in Neal Ardley's first team further limited by the signing of Hussey.
The teenager is hoping to add to the 18 appearances he has already made for the League Two club this season, but says he is willing to be patient and learn from his more experienced team-mates.
He told the Hounslow Chronicle: "I'm young and he [Neal Ardley] has said I will get my chance. He told me to train well and whenever I get my chance to just take it.
"We haven't spoken about [a possible loan move] so we'll see what happens in the future.
"I can learn from Chris and it's good to have experienced players around me. He's come from a higher level and obviously I'm looking to make myself a better player by picking things up from him."