Well, no.
33.86 is alive and well, and will be for another year or two.
When I last spoke to Wayne County's director, there was a 1-3 year change over to the new channels for the fire service, depending on the county getting the equipment (and fundage) and the fire departments purchasing equipment. The expected switchover is expected to be gradual, and there hasn't (since a month or two ago) been a definitive timeline established.
One of the major kick in the nuts is that the county missed the deadline for a decent sized grant.
When you have to spend about $400 per person per department on pagers, upgrading siren controller receivers (depending on make/model), truck radios (figure about $600-$1500 a radio), installation costs for such radio...and its gets to be expensive.
And, site equipment hasn't been factored in yet.
Last time I spoke with Marty, it wasn't clear if they would stay simplex, go repeater or simulcast.
154.31 is only used around the Lake Arial area IIRC. Everything else is 33.86.
At this time, EMS is staying right were they are as they switched off the other channel a year or two ago.