The title of Fear's Season 5 mid-season finale is "Is Anybody Out There?", this is also the exacts words said by the Radio Woman in the season 9 finale of the main show. Do you there you will be some kind of connection?
There definitely could be some connection. I doubt the woman would be by herself and is likely a part of a community so even if there isnt a time skip in Fear, this community likely existed before the skip in the main series and could be encountered in this upcoming episode of FTWD.