it looks like he is part of the new test group who gets the opportunity to mess with the new UI that Niantic is working on
i tried to get him to make a thread on it but he decided to pass on it, so i thought i'd share what he shared...as i said, def worthy of a new thread imho
update: Toki767 made a gif which demonstrates the changes...
Whoa! My Nearby section just changed. It will show the closest Pokestop if a pokemon is near there now.
When you press a pokemon and click view, it zooms out and takes you to this overview map now. The pokemon is in the pink circle I'm guessing?
Pressing on a pokemon under "Sightings" gives a generic message now. Wonder if they'll provide some sort of tracking for that.
Selecting the pokemon to track will also put an actual marker on your live map.
Thankfully if a pokemon you're tracking despawns, you get this message.
Pokestops themselves emit a pulse. So I imagine any pokemon you're currently tracking will be inside that pulse.