I myself is anxiously waiting for a call up however my application to MAS was handed in after March so I guess I got to wait for quite a while more
I sent in my application in mid-March, got called in for interview last week (couldn't attend though, due to them scheduling my interview at a time I just couldn't go).
Wonder if they'll keep my application on file for any future interview sessions, or if I have to reapply and go through the whole thing again.