McDowell, who finished third last week at the HSBC Champions in Shanghai, is set to play both the European and PGA Tours next year and is eager to boost his ranking over the upcoming Asian tournaments, starting at Sentosa Golf Club on Thursday, to ensure a less hectic schedule next year.
"I am not 100 per cent committed to anything yet. I am going to see how these next four or five weeks go," the 32-year-old told the European Tour website.
"If I can have a strong finish this year then I can play a little less next year. I will play both Tours next year."
McDowell strung together four rounds under par at the WGC event last week to finish third on 16 under par and equal his best result on the European Tour this year.
The world number 14 ended four shots adrift of winner Martin Kaymer in Shanghai and was heartened by his performance in China following a torrid time at the Andalucia Masters the week before.
"I worked hard last week to the point where I am now moving the ball very well both ways," he added.
"Unless you have a ball flight you can control you cannot really play this game very well. I was happy the way I hit the ball last week and I putted much, much better.
"I am coming in here with a little bit of confidence and this is a golf course where you certainly have to control your ball flight. And with these big undulating greens you need to putt well."
McDowell, though, will have to resist challenges from, among others, Phil Mickelson, Justin Rose, Francesco Molinari, Padraig Harrington and Ernie Els over both the Tanjong and Serapong courses.
Mickelson is confident a fifth visit to Singapore can end with the 41-year-old lifting the trophy.
"I have been back home playing and practising and just itching to come here and play because I feel that I have been playing well and shooting some good scores," said the world number 11.
"So my excitement levels are really high at the moment, for this event and next week's Presidents Cup because those are my last two events of the season before 2012.
"Having played here a number of years I just feel that every time I come here I play the course better and better.
"I have to accept that there are a number of holes here where you have to accept par and maybe I have been forcing the birdies in the past. The more I come here the more I accept that."