There's having a game trailer leak online, and then there's having a work-in-progress trailer get out. That's exactly what's happened with Plants vs. Zombies: Garden Warfare 3, or as it's now known, Plants vs. Zombies: Battle for Neighborville.
The above video shows a reveal trailer, probably due for its debut at Gamescom, and it's not even finished. There are storyboards in place of artwork, file names onscreen, and a section with temporary game footage. Most of the trailer is in place, but this is most definitely not meant to be for public consumption.
We imagine this weed will be pulled pretty soon, but now that it's out there, more mirrors will inevitably emerge online shortly. If all else fails, you'll likely see the finalised version of the trailer during Gamescom in a couple of weeks.