I would love to have it give a notification in game for an upcoming restart, and have it tied to a timer (like 10 minutes) so that people who are online can have some warning before the server restarts.
You and me both
yes it would be very beneficial. Have seen this on other conan Exiles private server don't know how t they did it
Okay I found the answer!
When it comes to games, the PS4 does not support RCON functions, so this feature would not work.
If you are doing a game via PC (Steam account most likely) those usually have RCON functions to allow a Broadcast Message and timer to get setup.
ARK is a perfect example of this, since this one does both PC and PS4.
PS4 doesn't have this in Basic Settings. So general rule of thumb here - If it has the section for it, it support RCON. If it don't have it, no RCON functions will work properly.
Hope this all helps!