I don't believe he can get on the ballot at this stage in the process, and I don't think he actually has a campaign organization or strategy other than being Kanye West, so it's unlikely he can legitimately run this year.
Kanye West running for president? Seems legit.
In all certainty, he probably won't be the new POTUS, but I really can't see if people would vote for him because he's Kanye West or for some other reason.
Memo to Kanye - promise the American public a pair of Yeezys for each person and you get my vote in two years time.
(For legal reasons, that is a joke)