What I would also like to see is if you submit your team, and then start a dynasty, if you update the uniforms in the Team Builder after you start the dynasty that the new uniforms, stadium, etc. would download automatically. I made an error on one of my helmets and didn't realize it until I went to use it in dynasty. I fixed it in Team Builder, downloaded it again, and when the team uploading again in my dynasty the changes were gone.
I get that it was my error to begin with, but it would be nice if you correct the changes that the new uniforms would also be updated. I don't need the roster to be uploaded again, but the uniforms, stadium, etc. would be nice to carry over to your dynasty after an update in Team Builder.