The Republic of Ireland international captained the Galaxy to glory in the 2014 MLS Cup final on Sunday by scoring the winning goal in extra-time to help beat the New England Revolution 2-1 at the StubHub Center.
Former Tottenham star Keane, who won the MLS MVP award this year, said he would sit and think about his future despite having another year to run on his Galaxy contract.
"I definitely need to recharge the batteries and see what the next chapter is for me, whether it's here or it's somewhere else...," Keane said.
"I'm not saying I'm going to leave, but what I'm saying is I need to consider what I want to do, you know? Sometimes change is good for everybody."
Keane, who was recently linked with a January move to QPR, added: "First and foremost, I've got to worry about myself.
"I have to worry about what I'm going to do. I've had a tremendous four years here. I need a vacation and see what next year holds for me first.
"I'll look at that first and see what's best for Robbie Keane instead of worrying about anybody else.
"I'll take a vacation, and then I'll see what I want to do first."
Since joining LA from Spurs in 2011, Keane has won three MLS Cups and one Supporters' Shield with the Galaxy.
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