This was already posted in the other thread, but looks like it went totally unnoticed, so here goes...
First update for Hyrule Warriors is almost complete, and they are currently testing it. But it won't just be about bug fixes (hi there, Zeldarunia), as it'll also include a brand new game mode. They don't tell us what this game mode is about though, but it doesn't look like something major.
Here's the tweet
Thanks tonyh24613 for the heads up!