I can't believe they're holding the back three until January.
It's been standard network practice for decades to take a break from airing new episodes during the holiday season, on the assumption that people are too busy traveling/celebrating/shopping/etc. to watch their shows, and to make room for holiday specials. Sure, it's a little awkward to do it 10 weeks into a 13-week season, but it's not surprising that they'd be taking December off.
It does seem that it wasn't planned this way, though, because Chapter 10 didn't really have that big a cliffhanger -- a bunch of people running across the lawn at Stately Parkman Manor? It would've been better to break last week, since that image of Miko awakening in the far future was a hell of a cliffhanger. Or to break before "June 13th" and save the big explanations for the back half.