Even if these suits were settled tomorrow and people in Illinois were deemed to have the right to carry. It doesn't over-ride ALL existing firearms regulations. So hypothetically speaking - people who did not have Illinois FOIDs who had firearms on their persons could be arrested (I think).
The FOID system in it's entirety would have to be ruled unconstitutional and I don't think that is what is at issue here. I could be wrong...
Also, HB148 does not throw out the FOID system as far as I can see.