Some great new things revealed in those recent 'facebook' preview shots! It's neat to see that Adywan has actually moved Luke's legs closer together so they now tie-in with the position of his 'iced-up' feet.
And I'm also really pleased to see that the lightsaber hilt is going to be buried in a more consistent way during the scene's various shots of it than it currently is!
While minor, these were always annoying 'continuity issues' until now.
And having Yoda (and his blue sack beside him) actually positioned ON the log now immediately after getting off Luke's back, is another terrific fix. No adding or removing of any shots in that sequence needed after all then! Perfect. :)