Well, as it's just an update to the present state of Python and not a different language or framework it should not be a different course, just an upgraded version of the current one.
Besides, a poll is just reflective of what a small sample of people already on Codecademy think, not potential newcomers, and as such should be taken with a grain of salt.
So I think your suggestion does not exactly solve this issue, but thanks for it. I appreciate your attention. I voted for Python 3 there.