If you look on their Twitter, they posted the same image with a different caption: "Battle Bears Zombies update coming #iOS11 #ARkit" which basically confirms that BBZ is getting a new update of some sort!
They also seem to be experimenting with Augmented Reality too, as they retweeted a photo from their SkyVu account of an Oliver model, similar to the one from the Battle Bears Movie scene, standing in their office.
I'm not sure if anyone noticed this, but there's a whole different game of Let It Goat on the App Store in a different language and has a different icon. (I would put up an image of it but it isn't working for me right now.) I'll test it out to see if it's just the same thing or not.