Ghost said:

How about showing a cut scene of Yoda meditating and reacting to Lukes failure at Bespin?

It wouldn't break any pace. That would add more emotion to Luke's failure.

I hate to pile another sandbag onto your idea Ghost, but that sounds like a change for the sake of change. What's more, how could watching Yoda look glum in a swamp add to the emotional upheaval that occurred at Cloud City?

C3P0: Blasted to pieces

Han Solo: Frozen in carbonite.

Luke: Brutally maimed by the villain now revealed to be his father.

To be honest, I don't think the audience cares about how Yoda feels about the above developments. Not while they are so fresh anyway.