With the club still sweating on their Sky Bet Championship status, no extension talks have been opened as yet.
That means those who are due to be out of contract in the summer are facing up to an uncertain future.
Relegation could see them dropped into the free agent pool, while survival would likely see offers tabled.
Wilson is hoping that the latter proves to be the case, with Charlton having pulled together to edge two points clear of the drop zone with games in hand on all of those around them.
Their recent resurgence has been built on solid foundations, with the likes of goalkeeper Ben Hamer and centre-half Michael Morrison - both running down their deals - emerging as star performers.
Wilson said in the South London Press on the need to get them tied down: "The record of our defenders speaks for itself. It would be a shame if there wasn't stuff done.
"But for the club, it's a matter of seeing if we stay up before things get dealt with.
"That's the sense I get - that we'll have to wait until things are more permanent for next year regarding our position.
"It's been a pleasure to play in our back five."