The possibilities are discussed here at the BWF site -
World of a Battle for No.1
Apart from this race, I hope Indian men also do well this week. None had done particularly well last year. So, whoever does well will earn a lot in terms of rankings.Of course Indian fans are hoping Nehwal – who turned 25 on March 17 – can cap a historic week by winning the trophy which she has failed to clinch on home turf since the India Open joined the BWF World Superseries circuit in 2011. The only obstacle looming large in her way is if equally talented world No.4 Carolina Marin (72098 points) makes the final while Nehwal falls in the quarter-finals or earlier; or 21-year-old Marin (BWF home page; right) wins the tournament and Nehwal fails to make the final.
Should both reach the final, Nehwal’s No.1 status is assured.