A total of 1022 candidates joined the pool or improved their scores/received nomination in last two weeks before the 62nd draw. And a total of 1566 candidates joined/improved or received the nominations in the last two weeks on the whole. That is as per my calculation based on the stats of 61st and 62nd draws. The number of candidates in all segments below 410 remained almost consistent.
Considering this number and let's say we have approximate 2K candidates per two weeks (taking the word of this guy), even though the score is bound to fall down. Keep in mind that achieving CLB9 is a serious pain in the a**. And being honest, in my opinion, 80% of the candidates in the pool are from the countries where English is either the 2nd language like Pakistan, India, Bangladesh etc, or it is not even the second language at all. The number of candidates drawn in each draw is more than or at least 50% of the candidates joining in. I do not see any reason for CRS not to fall down. Statistically, if a draw happens this week which in my opinion is very unlikely, the CRS will fall to 404 or even lower. However, in case of May 31st, it will fall somewhere between 405-407.
The reason why May 24th draw is unlikely is because, on June 6, new changes will come into effect and if a draw happens this week, the next possible date for a draw is June 7th. CIC will need some time to accommodate the scores and integrate the changes and a draw on June 7 wouldn't be possible. May 31st draw will take the next possible date to June 14th. The changes will be there, everyone will receive their additional scores if applicable. We may ( a slight possibility in my opinion) witness a rise in the score but after that, it will fall back again.