From Taiwan comes images of what looks to be an official sticker sheet for the new Generations Devastator set.

So far this has only shown up in Taiwan so could be their exclusive, but might show up at Asian ToysRUs stores like the Menasor/Superion sticker sheet earlier this year.

Apparently it was included in the box (or added to the box for the Taiwan market), with Chinese writing.

I think this should have been in all the Devastator toys like Metroplex had. That way you can leave it with just the factory paint and stickers, or add the extra stickers for some extra detailing (like the Menasor/Superion stickers).

The result looks very nice, but I think the owner of that Devastator has also touched it up by highlighting the lines on the toy with black.