Johnson, who has been instrumental in helping County avoid the drop, said: "Notts County's a club close to my heart.
"I want to play there but there's a lot of things which touch a nerve with me at the minute.
"For me to come back a lot of things are going to have to change but it's not about me it's about the football club."
Johnson returned to the Magpies, where he began his career, in March.
He made 135 appearances for the club between 1991 and 1995 having progressed from the youth ranks at Meadow Lane.