Ewan Stewart indeed seems an impossible choice - reason to believe that this report is false.
And the fact that they were looking at a wide age variety does not confirm the accuracy of this list at all.
Well, some people said that Daniel Craig was an impossible choice yet Craig said Sony gave him the role - so anything is possible.

Sure, but Craig is in his late 30s (although, granted, he can look quite a bit older than that), seems to have a full head of hair, and is a very "happening" and in-demand actor, rather like Owen but not as good-looking (IMO, anyway) or (presumably) expensive. Also, his performance in LAYER CAKE shows that, while he may be a wee bit lacking in the looks department, Craig could
act Bond brilliantly (a "gritty" Bond in the manner of Dalton and the Fleming novels). So I don't think Craig is an impossible choice at all - a brave one, because he isn't as handsome as, say, Brosnan, but an inspired and possibly excellent choice nonetheless.
But what about Stewart? He's pushing 50 and appears to be balding. What's he been in that suggests he could play Bond? I'm not familiar with his work, so for all I know he may have been in a film in which his acting convinced Eon that he'd be able to absolutely nail the part of 007, but on the strength of what little I know about Stewart he does indeed seem an impossible choice. I can understand people supporting Craig - heck, I support him myself - but Stewart? Nah. He strikes me as about as suitable a choice for Bond as
Rod Stewart.
I can believe that Cavill and Visnjic are on the list, though.