At first I was excited about the prospect, then I read the good arguments about how that really wouldn't be Vader's MO. Then Darth Stewie turned me back around to liking it as we don't get to see much Imperial oppression against innocents. However, I still don't think it fits due to sequences in the movie.
Lando and Co blast their way out of Cloud City and leave in the Falcon with no problem. Then they turn around and pick up Luke. THEN the TIEs come down on them. I think that's when the "more Imperial troops" are arriving, because if there's already TIEs in the air over Cloud City, how does the Falcon leave, come back, and pick up Luke without being shot at?
I'm all for having various ships leaving after Lando announces the Empire's intentions (and as a fan of "Firefly", you could have Serenity really small in the background), but I'm no for the TIEs.
Another 5 cents about the open hallway. I love the new shot, and with some fixed reflections, I think it would be very nice.