Thank you for reminding me of a dream similar to this.
I had a dream around 2014 that there was new BIONICLE 2015 catalog leaks, (this took place months after the B/W leaks)
The rendering style and background looked similar to this:
The only page that was leaked was a Tahu vs Gali set of some sorts, with the rendering and background exactly like the photo above, (well, close to it at the very least)
The leaks looked like a cross between Mata, Mistika, and the 2015 B/W sets.
There weren't any gear functions, and I can recall Tahu's color scheme being primarily black and red.
I cannot really remember the design of the masks, but I clearly remember their colors were like the Nuva prototype masks: