If you haven’t read about the last two sneak peeks, they have both matched the “fake” update list almost exactly. So is the update list actually real, leaked information? My leading theory is yes. The tweets by Supercell have matched the update list almost exactly, so it can’t be a random guess. However, I believe that Supercell purposely released the list in order to catch us off guard.
My theory is that their thought process was if everything matched that list then there wouldn’t be anything extra “added on”. That way when they release, say Town Hall 11 or another huge update such as that, we are all caught completely off guard since we thought only the items on the list would be added. I think Supercell is too smart of a company to let this happen on accident.