On wowhead there is a post saying the Jade Tiger is returning as an ultra rare spawn on all US and EU servers; any truth to this?

I was reading on wowhead about the Minfernal, and I came across a post about capturing one after a server restart. After the server restart today; I captured 2 Minfernals 5 mins before 2pm central time.I also came across a post that said they were caught around noon, mine was caught at 2pm central w...