Reshoots for "Into the Woods"?

Well, this may help explain why we haven't seen a trailer yet.  Broadway World has posted an article quoting a production runner for Into the Woods, who states that the film will undergo a month's worth of reshoots.   To be honest, I'm not exactly sure what to make of this.  We have no word on which scenes are being shot. These may be completely new scenes and not actually "rehsoots" of already completed footage. Regardless, it paints an ominous picture in my mind.  

I'm sure many people will hypothesize that these reshoots are in response to the outcry from purists of the original musical after spoilers were revealed by Stepehen Sondheim suggesting unfavorable changes to the story.  I have a hunch that's not the case.  What's probably more likely is that they weren't happy during the editing process and need to modify a couple of small sections.  Even if this ultimately provides for an improved film, it still makes me nervous.  Stay tuned.