The 252 day limit is for CEC right ?
Its not a limit. Its an estimate on the approved applications on immitracker.
Take into consideration that the database is not official, and managed by the users themselves. So it might contain mistakes, not updated, etc. however it gives some indications. Pretty much all applications from January and December are finalized. Front he entire 2020, less than 40% of applications are approved. This is very illuminating from March...
Once more applications gets approved, the average day of processing applications will increase from 250 to 300. Its a statistical certainty. The current model takes only the ones approved aproved in 2020. But as the rest of the 60% of applications get approved (or rejected) the average processing time will increase.
There are very few rejections. Which is very strange, if we look at patterns from 2019 and 2018. Most probably applications haven't been rejected, which is very unfair because we are talking of applications with more than 200 days in processing times. But some will be rejected for sure.
And yes, I only calculated for CEC.
This data is public. You can play around with it yourself.