they took 3 months to film 6 episodes so I think this time it’ll take them at least 5 to film the 10 so they’ll stay in Vancouver from the beginning of August to the beginnings of December? I really can’t see how Gillian agreed to that if when she filmed s10 she wasn’t already happy with the time away from her boys. but I ain’t complaining I’m glad she agreed to it

I’m not convinced it’ll take them more than 3 months to film 10 episodes. On average, tv shows take one week to film one episode, so in a normal world, 3 months to film 10 episodes should be enough. 

I think there’s also a weather parameter. If they start in August, I think they can’t end in December. At least not in Vancouver, except if the weather is part of the story telling. If they do, it’ll start under the sun and end in the snow. 

In my opinion, they’ll film 3 months, maybe 3 months and a half, and wrap mid-November, maximum.

I don’t know what took them so long the last time… Maybe not enough preparation, too many special effects or hours spent to set up bad lightings.