The Irishman is currently on a two-month loan at Aston Villa during the MLS off-season.
"Come back permanently? No. I am quite happy in the MLS. I have really enjoyed the three months I have had there so far," he told The Mirror. "It is a great lifestyle out there for the family.
"It's nice to have the opportunity to come back for a couple of months, but when that ends I am looking forward to getting back with the Galaxy.
"I was having the time off that I wanted, but then I got some phone calls and when one of them was from Villa it was a club I felt immediately I would be comfortable with, because of the people I already know there."
Keane's first appearance in a Villa shirt came as a substitute during Saturday's 1-1 draw with Everton.