The IL State Police shows that my license and FOID are marked as "Active".
Meanwhile, I understand Michigan is about to make carry in Michigan a bit easier. This is good news.
How so? As far as my understanding goes, Michigan has reciprocity with both Illinois and Indiana.
If your FOID/CCL still show as active, it is likely because they have not yet discovered you are no longer an Illinois resident, possibly because you have failed to return your FOID/CCL as required. If it were me, I would certainly NEVER carry those Illinois cards, fearful that I may be accused of impersonating an Illinoisan for the purpose of (illegally) carrying a gun in Illinois. There is no wiggle room and your CCW is no longer valid, no matter what the status on the ISP portal is. It is foolish to think otherwise.
Michigan recognizes an Illinois License (and all others, I think) but Illinois has NO RECIPROCITY with any state. In other words... the only license valid in Illinois is a valid Illinois License. While it might seem like 'it's just semantics'... it is important to understand the little details.
Re Changes in MI:
It's a refinement, of sorts, for Michiganders. While in Detroit last week, I kept hearing (on NPR) about MI possibly no longer requiring a CC permit with 8 hours training to conceal, but you would still need a "permit to purchase a handgun" from your local LEO and could only conceal guns "registered" to you via the purchase permit. Sort of constitutional carry except you still need a purchase permit.
If you are not a Michigander, you still need a valid permit or license to carry from your home state.
Life is a cooperative venture... That's what makes it work.