I think Daniel Craig can be the next James Bond because he is familiar with the character from that image. But the other candidate will be Michael Fassbender because he is like have a secret like Daniel Craig, charm, and I see that he is a mysterious person 
Daniel has to retire, he can't continue for that character.Michael Fassbender seems cool, I like his character as Magneto on X-Men.
Maybe they can Put Vin Diesel instead? as i see He is not part of the choices .
I agree with you, Vin diesel seems good for replacing Daniel. but maybe his posture (too muscular) is not so suitable for James bond's character which needs a Flamboyant, cool and casual, maybe a little bit difficult in disguise or spying on a particular criminal (popping muscles).I can vote for Hiddlestone for the role.
The mischievous look of Loki will surely suit in the James Bond character too.
I am sure that along with me more people would also like to see Hiddlestone shining in the role.
Regarding Vin Diesel, we have seen him in a gangsta role in Fast and Furious, also i agree with you regarding the body shape too. So he is not the worthy candidate.
Let’s see what happens.