Yes Nike most likely finished the 35s some time ago. And yes it's likely that Mo Farah gets shoes earlier than official release. Yes that outsole pattern looks very similar to the soles on the pics you posted.
However
from what I can see of Mo's pic the rest of the shoe doesn't really match, but it's a crappy shot.
And... just googling Pegasus 35 doesn't mean that the shoes that come up are the real deal. Especially not if they only appear on fugazi sites (and the pics you came up with are 100% fakes).
And finally it wouldn't be the first time that rep companies came up with their own designs (with or without copying parts of legit shoes, because samples of 35s most likely are floating around).
So, Mo's shoes legit? Wouldn't be surprised.
The ones you posted? No one knows for sure but I don't see anything reliable that confirms this, only signs that should make everyone skeptical.
You most likely didn't even recognize those pics as reps companies pics.