Mr. Timmy..
Illinois will be titanium D even in 2044!
1990: Virginia will be solid Republican, even in 2016.
There are absolutely no indications or clues that Illinois will become a GOP state. If anything it will become more democratic.
It'll never be a Solid Republican state, but I doubt it gets more Democratic. Chicago isn't thriving the way major cities of the Sun Belt are and it's only a matter of time before Madigan's Machine unravels (he is in his 70s after all). IMHO, by 2024 it's
lean Democratic for the Presidency,
lean Republican at the state level, kind of like how Wisconsin was.