Pretty sure that Chelsea mock-up is almost legitimate.
That website footyheadlines described it like that, and showed a little image of the lion in the shirt's print. They've replaced Football Shirt Culture as the main website for leaks, and they're usually bang-on. They're just not allowed to show full leaks anymore because it's a legal issue.
The stripes moving to the sides will be 80% across the board next season for Adidas. Pretty obvious.