we're in the same situation and i don't know also when they send us the notice about the next step coz it is 1 week past when they noticed me in my E-mail that the received my medical and post it in my E-cas. they said the next step is the request passport, so we will wait and see....
Some ppl here says might take about 1 month to receive the RPRF or ppr since the day you see that update in your E-CAS. I am still waiting... Good luck!