Good question as were in the same boat almost (wife had medical a week ago). From what I read here it can be pretty random, sponsor approval and AIP should be the next step but people report that when they get those a DM follows soon after, or you might not hear anything for a few months then go straight to DM and a landing interview, or even a landing interview is arranged before anything is updated on mycic/ecas. I think no news is actually good news, if they start sending out extra requests for info etc then that will slow down the app.