In his Mail on Sunday column, the former England defender looked ahead to his summer in Brazil as a television pundit.
He wrote: "I see myself as going to Rio very much as an active footballer with playing time ahead of me.
"It is feasible that in the coming weeks, perhaps even while I'm in South America, I'll make a decision about the next stage in my career.
"I have options on the table from several clubs in England and overseas for next season and I'm intending to play on if the right situation arises."
Ferdinand, 35, played for United for 12 years, having joined from Leeds United in 2002.
He appeared 81 times for England, but missed the last World Cup after being named as captain, because of a knee injury.
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