I honestly can't make up my mind. Like Volroc has said, every time he presents (very impressively I might add) proof that the scans are fake, something turns up to show that they're real after all.
What we can definitely conclude is that pages 14 and 15 are fake, because of the different numbering style, the numbering going from left to right and the fact that the numbers are on the inside of the page rather than the outside like the other pages. Also Reshiram's nose pokes over onto the right-hand page but his left wing claw doesn't, which is the sort of shoddy editing that you'd never expect of a professional magazine.
However, page 29 seems to point out for definite that Pokabu's middle stage is real after all (which is a massive disappointment to me, but hopefully it'll stand on all four legs sometimes and look far better for it). But there is something to bear in mind here. Page 15 - which appears to be fake - has all the information about the starter Pokemon on it, including their types, or at least I assume it does, seeing as I don't read Japanese. Page 29 does not. So even if Pokabu's middle stage is confirmed to look like that, its type (Fire/Fighting) is not necessarily, as the only page that is written on is probably fake.
Also, at no point have we seen the final stage evolutions. The ones we've seen leaked could still be fake, and I still think they might well be.