As of last weekend, everybody was still using their old systems/freqs. A recent CARMA posting stated that the County is still waiting on the mobile repeaters before they can switch to the P25 radios. A METCOM dispatcher wrote “The plan here is the Mclean County sheriff Dept and all rural PD's will be the first users of our local system and middle summer Normal FD will be switching over and then late summer of early fall the Town of Normal PD will switch over to the new system and when Starcom comes up and running they will reprogram the radio's here and they will be fully on the system. Andy”. I’m anxious to see when/how this change is implemented. The Starcom control channel in Normal is now active.
You can also try posting this question in the landofzoz.com forums since the info I have is all third-hand and people there may know more than I do.