But any plans for going out to grass at the age of 30 would come after three more years of domination that might include a pop at the Commonwealth Games next year and another shot at bettering his own 200m world record.
Bolt has dominated the competitive world of sprinting since claiming three gold medals at the 2008 Beijing Games but hinted ahead of Friday's season-ending Diamond League meet in Brussels that Rio would be his third and last.
"After the 2016 Olympics: that seems to be a good idea, retiring when I'm still on top of my career," said the six-time Olympic gold medallist.
'Usain Bolt fashion' or not, the 27-year-old Jamaican still claimed a treble gold at last month's world championships, taking his world gold medal haul to eight.
"Now that I'm getting a bit older, I know that I have to stay injury free, maintain focus and act responsible," he said.