system
Given the following post, respond as if you're commenting on Reddit:
human
[SW] What would have likely happened had Luke not left Dagobah to save Han and Leia?
gpt
Well for starters Luke keeps his hand.

The fact is, not a lot changes for Han and Leia. Han still gets frozen in Carbonite and shipped to Jabba for a time. Leia gets rescued by Lando and they go back to the Rebellion and plan how to free Han.

Luke stays and gets several months of intense training with Yoda, he probably does get told that Vader is his father when he is ready for it. When he finally faces Vader, there is no surprising revelation that he is his father, and chances are there is no redemption for Vader as Luke kills him in the duel. Now the showdown with Palpatine is anyone's guess.