It has been said that Madison county will complete the replacement of its Whelen WPS-2904s and 2906s by the end of this month. Several sirens have already been removed, but a lot of them still stand next to a T-128. From what I've been able to gather, the Whelens sounded their final noon chime on the first Saturday of this month.
They've said that they will continue to monitor the sirens for issues, which I can assure you there will be if you watched 4j25's recent video on one of the new ASC Claritys on EKU's campus. Apparently the entire system will not be voice capable, but I really doubt that if EKU installed these Claritys (it's listed on ASC's website as being a campus-oriented siren)
At least right now, it's unknown what will happen to the Whelens or if the test schedule will remain the same, but I might have to call the EMA to find out.
Below are some photos I've taken from a siren hunt I did today with a mix of the new and old sirens.