We are all going to sit back biting our nails. Illinois has a reputation, much as NY, for fighting unfairly and against the will of the People, etc. I would expect that we are still going to see some significant hoops to jump before Illinois residents get their carry permits.
As a non-Illinois resident, I hope that they will set up recognition for permits from other states but am not holding my breath.
Perhaps if they take the true spirit of the decision to heart they will simply recognize a permit issued by any other state, resident or non-resident, and issue permits after a NICS check to anyone that applies, resident or non-resident, with Illinois residents not even requiring a permit, like my heroes in Arizona, etc.
BUT, when you look at a guy like Bloomberg who supports a total ban on handguns in NYC but permits his cops to shoot innocent bystanders with impunity and does not permit the National Guard into NYC as ordered by the Governor of NY because they carry guns, you gotta wonder what is going to happen.
Hope for the best but don't be surprised.