The 23-year-old starred in the first half of last season before moving to Championship side Luton Town.
He continued to watch his old Saddlers team-mates on iFollow and believes the club, which has undergone several changes, can get back on track next season.
When asked if he wants to see the club get back to where it belongs, Adebayo told the Express & Star: "Definitely and I think they will.
"It will take a bit of time. It won't be an overnight thing but it will be nice to see Walsall have a promotion charge next season. I hope to see them fighting for a play-off spot or automatic spot.
"I'll definitely keep looking out for Walsall results like I have been. I'm looking forward to seeing what they can accomplish next year.
"A few of the boys will still be there and it will be nice to see what a new-look Walsall team is like.
"The fans will be back in hopefully as well, so they can get behind the boys."
Walsall provided Adebayo the platform to shine and earn his big move and when asked if he was thankful for the opportunity, he added: "Yes, definitely.
"They took a chance on me really. I didn't have the most successful loans so for them to take a chance on me, I'll be forever grateful to them.
"I hope I repaid them in some sort of way.
"100 per cent I owe it to Walsall for the work they put into me. Obviously, I did a little bit myself as well."