Phee wrote: I noticed that the tumblr post has a date of the 18th on it.
We also had some tweets on Aug. 17 and 18, from Ginnifer Goodwin that there was a night-time shoot which was closed to the public. Another post on tumblr reports that Josh Dallas, Ginnifer Goodwin, and Jamie Chung were doing a shoot in Burnaby Mountain Park on Friday, August 17 (i.e. the night shoot that Ginny tweeted about). http://lexijeter.tumblr.com/day/2012/08/21/ So, the photo of the hut was probably from the set where Jamie Chung (aka Mulan) was filming.
We know now that Ginnifer, Josh, and Jamie were finishing up filming in a destination set location on August 17. The other information we know is that Robert Carlyle and Colin O’Donoghue (Captain Hook) were simultaneously filming together for two days solid for episode 4 (based on a tweet from Robert on August 19). We know it’s for episode 4, because that is when Captain Hook is set to appear.
There are two possibilities. If filming for episode 3 ended completely on August 15 (as hjbau speculated), Mulan will appear in episode 4. However, it could also be the case that filming for episode 3 ended on August 17 for Ginnifer, Josh, and Jamie while filming for episode 4 started that day for Robert and Colin. Either way, we’re going to see Mulan (one of my favorite heroines)!
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy