The Welshman, who returned to his boyhood club in January, underwent successful ankle surgery this week.
The Town boss says his 33-year-old midfielder will be able to build himself up with a successful and injury-free pre-season for next year.
Asked if Edwards can come back fit and firing, Ricketts said: “I hope so. He was starting to train on a regular basis and get his fitness back.
“He was going through a bit of a pre-season process while trying to get to influence the team with us.
“This is an opportunity to reset really, with everything. He can do a really good rehab, build his body back up and get into a good pre-season to work himself back up.
“So we get a Dave Edwards off the back of a good pre-season which will make a huge difference.”
Edwards, back at Salop 12 years after leaving, has made six appearances in blue and amber since returning.
Having missed the first half of the season at Reading with a knee injury, the midfielder suffered a groin complaint on his return before he was shown a straight red card at Bristol Rovers in February.
Edwards has started three games but the ankle problem, picked up in training, has ended his season.
Goalkeeper Steve Arnold has begun light training at Sundorne as he steps up from a hamstring injury but will not play again this term.