You won't see any DU-COMM or ACDC entities going encrypted (which includes ALL law enforcement talk groups) possibly until the end of Q4 2022, or possibly the 1st quarter of 2023. Still don't hold your breath. The political implications of various factors could change in a Minnesota (or in our case, Illinois) minute. Look what's happening with CPD? They're encrypting some of their VHF frequencies, and it was thought that the "new 800 MHz P25 trunked system" for CPD would be where all encrypted operations would take place.
Bottom line is that it IS going to happen. It might not be this summer, but it's a 100% certainty that all DU-COMM and ACDC law enforcement entities are going dark for us scanner enthusiasts at some point "soon."
And to throw this into the mix, most of us are aware, Naperville/Aurora Open Sky system is being converted to a P25 trunked system which will also continue to be 100% encrypted.