The 31-year-old arrived at Stoke City on loan in January, and is staying there for the rest of the season.
And Villa will not stand in his way of securing a new club in the summer.
Chester moved to Stoke for game time, and he likely does not have a future with Villa - even if they are relegated.
Football Insider suggests the long term fate of Chester is sealed at Villa.
His deal runs out in the summer, and he will move on a free to the club of his choosing.