Then I wouldn't wager to much money, because Ive was quoted why he believed a round variant "Doesn't make sense" under his design with Marc Newson's influence in the implementation of the Apple Watch.
Obviously the reason for a square display is for displaying data in a certain method. But other round watches had already executed this as well, So there's no argument there. I think it's coming down to Apple not wanting to release the circular display based on their preference or what have you. I'm not saying they wont or they can't release a circular Watch, I just feel that Apple may not stretch that way anytime soon. At least based off this article.
Ive was quoted that a circular display doesn't make sense in the form of listing and displaying names/other information. Being He is lead designer of the Apple Watch, I question if a round variant will ever happen. Think there should be around Darien, being diversity is a good thing and the theory not every one has the same appreciations for design.
http://www.newyorker.com/books/double-take/the-man-who-made-the-apple-watch