33.58 is still going to be utilized for dispatch simulcast / broadcast for Ledyard. Preston is still on 33.58 as well, so I've been told. We were still communicating on 33.58 back to Station R yesterday during a dual response yesterday.
The information I got about the UHF system, Ledyard will be completely operating on the new system. They'll get toned out on Dispatch and then be assigned a "TAC" channel, all three of which are repeated. Dispatch and all the TACs has talk-around channels as well.
We are having our UHF mobiles and portables updated where I work so we can easily communicate with them since there is a lot of dual response. I'm working with the radio techs at my work on this.