Bingowings makes good points.
To me, the idea that Luke put everyone in jeopardy so they would ride a barge to the Sarlaac and escape there is too ridiculous. Especially as staged-- it would require that Luke know in advance about impossible to know details such as what job R2 would be reassigned to and that he would be the first one pushed into the pit-- hell, how the hell did he know they would be going to a Sarlaac in the first place? It is, bar none, the worst "plan" I've ever seen in a movie. It's like Ed Wood was Luke's strategist.
But rearranging it so that Leia jumped the gun with her own risky plan and got herself and Chewie caught has a kind of desperation to it. Not unbefitting for the sequel to ESB.
The idea of Luke's entrance being "mysterious" and therefor worth preserving makes me scratch my head. What was "mysterious"? Did we not know it was Luke? The only mysterious thing about it is WTF is he thinking? And the answer is apparently that he has a finely laid plan involving getting everyone to the Sarlaac pit where a blind Han will kill Boba Fett, etc. etc.
I like Possessed's ideas about Luke's glove. He's going to give some of this a try. Yay!