OP was able to see the divorce filing that listed an address for him (subscription access only).
Not sure it can be shared here due to TOS. I have not seen it shared in any media source or on the family's Facebook page.
It would be helpful to know the general proximity of where he was living, was that place/area searched & what, if anything helpful, was found.
Latest update on Facebook below. Sadly, nothing new. But they did share a closeup pic of John with his daughters.
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www.facebook.com
Day 30 - We continue to search for John
Missing from Jacksonville Florida
#missing
Update: We have had no further sightings of John or information regarding his disappearance
We continue to please ask you to share far and wide in the hope someone may remember seeing John.