Breaking Dawn Part 2 Reshoots?

Have been keeping my eye on the rumors that the Twilight trio may be heading back to Vancouver for some re-shoots for Breaking Dawn Part 2. This is the news that has been tweeted all day. I am not sure if it is true or not. It kind of sounds like it is to me, but will wait to be sure. If they do return I just wonder what they will be re-shooting. Will be keeping my eyes and ears on this info.