Just an impression. Going by the PPRs and DMs i have seen from the last few weeks, it seems most of them are filed around may/june. Not many from later. Of course the prerequisite is your application is complete (MR, PCC etc and everyone is potentially unique in this regard).
Since our applications had similar timelines except medical, I suspect/expect that most of the processing has followed similar timeframes (give or take a few days), so chances are everything except MR is passed or almost passed on your app. Once everything is done, they put you in IP and do ELIGIBILITY after which you get DM and PPR.
You will notice that the most of the ones waiting on IP filed after us (July onwards). While those May/June and before are not IP. Either at AR/MR or passed IP. So my conclusion is if your app is complete, you get priority in IP if you are have been waiting longer.
