Nothing is going to change without a dramatic shift in strategy. Freezing tuition accomplished absolutely nothing. They will continue to lose top students to either more prestigious schools or cheaper schools (obviously, as they had the same tuition last year and record low in-state yield).
Either you are a target school for top in-state students (Michigan, Virginia, UCs, etc), or you have to pay to keep those top students in-state. The most you can say for Illinois is that it is a partial target for certain departments/Colleges. Efforts should focus on changing that situation, as they are a lot closer than most schools (the 2nd state-flagship proposal is the right way to go here).
Freezing tuition does nothing to increase status as a target school and by definition doesn’t make school any cheaper for top students looking at OOS schools (that are much cheaper with merit $). No one said it would be easy, but freezing tuition does zilch, except make COA slightly cheaper than it would have been for those students who would have enrolled anyway. Utter waste of time.