Draxz, I'm in the same situation, my medicals were done on the old passport number (and for me also it say "medicals received" along with application for PR recd)
My medicals expire in the next 6 days thought so I'll be asked for remedical!
Hope that doesn't affect my timeline by too long!
For all those whose medicals are going to expire before the process is complete, DO NOT do it again until NDVO sends a request for it.
I read this on another forum, you need to get it only when they send you documents because you need to take those documents for your remedical.