Most of the qualification events are updated in the 1st page (4th post... It is sorted by sports and not by week)
Saina tweeted yesterday: "Good to be back home after 2 months". Which means she is not participating in Singapore Open.
Kashyap won't be participating in Olympics. He's still nursing his injury and withdrew from Singapore Open. In a recent interview, he told that he hopes to return to competitive action by June
I do feel only Ajay has some chance of qualifying along with Srikanth especially after Prannoy is drawn against Chen Long in 1st round of Singapore Open.
Even though the qualification will end by May 1st, the qualified players can try to improve the rankings till July 21st.. So a lot of tournaments for Srikanth, Saina, Sindhu, Jwala/Ashwini, Manu/Sumeeth to improve their rankings