Highly unlikely. That said, the biggest boost will likely occur from this year's reps/experience. There were a ton of incoming freshman, transfers that hadn't played, plus a new coordinator, new position coach, etc.
Just to give perspective:
Returning P5 career snaps for the secondary going into the 2023 season: 1,163 (Nicholson was 592 of those snaps).
Returning career snaps for the secondary going into the 2024 season: 4,155 (Nicholson almost has as many career snaps as the 2023 team had going into the season).
Assuming Nicholson, Scott, and Scott come back next year, Illinois will have three secondary starters with 800+ career snaps. If Strain comes back, he has over 600 career snaps. You also have Bailey and Hill coming back. Tobe really impressed as a true freshman. Connelly talks about his returning production value is more weighted towards returning secondary production. There are reasons to be optimistic the secondary will take a step forward next year. There are also concerns, with the poor play down the stretch and Law Firm going to the pros. We'll tackle those worries once we see who's coming back (Jacas? Coleman? transfer portal?).