Kanye is a polar opposite of Bowie in talent? Jesus dude Bowie isn't that bad.
As a Kanye fan, I highly doubt this rumour is substantiated, Kanye has been working on his album Swish for over a year now, constantly pushing back the release date so I highly doubt with the amount of work he is putting in that, that he'd just stop and start working on a David Bowie album out of the blue. I am pretty sure what he means by carry on his work is in the form of his own music unrelated from Bowie, I assume he just means he is 'dedicating it to Bowie' as in a passing statement not a full tribute. That is if he actually said that at all, it seems odd that on all the Kanye fan sites I go on I don't see news of this but I see it on TSR.
Kanye is immensely talented, you may dislike his music but to say he is not talented is a flat out lie. Not only music but fashion as well, Kanye is a creative powerhouse.