One option might be to move your bed to the left which would put it more in front of the television and center channel speaker. The center is where the dialog from moves comes from, so it would be best to be as close in front of that as possible.
It appears your planning on moving the right speaker over to the left side of the bookshelf, so maybe moving the bed a little to line up with that change would make sense.
For the surrounds, are you getting Qs4's or Qs8's? If so, maybe put the left surround along the left wall in the new location you have noted. Then leave the right surround along the back wall between that back window and the bed. Since the Q series speakers have 2 tweeters firing to the left and right, I think that would work good. If you put it clear over on the right wall, that might be to far.
