Many thanks to 87eleven Action Design for sharing a photo on their FB page and to @keanulatino for sounding the alarm.
There is a new photo of Keanu with the directors Chad Stahelski and Davide Leitch and Jumpy the dog tjat was taken at the 87elevenAction Design studio.
Update: Meet stunt dog Jumpy! You can watch one of his clips on youtube.
Update X2: Many thanks to trainer Omar von Muller who shared a photo of Keanu meeting Jumpy on his FB page.