I voted for "maybe".
As much as I love I Am Weasel, I thought it ended at the right time. It lasted for 5 seasons, which is pretty long for an animated show.
I would like some more episodes, of course, but only if the same team that worked on the original ones will come back to work again for I Am Weasel. Changing writers/directors/etc. would be a mistake, IMO. And also, keep the format of seasons 2-5 (animation-wise, featuring the Red Guy, etc.). Going back to the original designs with a different crew team for a final season didn't turn out too well for other shows (like Johnny Bravo).
But, what do I know, maybe I Am Weasel would be an exception.