As the officials announced that there will be smaller draws until September, we cannot expect the score to decrease.
There were just 10 days between the draws and that's why the score dropped. If the number of invitations stays below 800 and the draws are every two weeks, the score is very unlikely to go beyond 480, just because enough people with much higher scores enter the pool within these two weeks.
CIC has really big backlogs of applications starting from 2014, and they still make courtesy when allowing people with canadian experience or after the studies to get in the process before all their permits expire.
I'm among of those who, if entered a week before May, would get in the process, but it's happened like this. But I cannot stand all these weepings in the forum asking why and making unreasonable predictions, not this thread, but others. CIC does not own you anything. People used to wait for 4-5 years before Express Entry to get their PR. You cannot really change anything except improving your score.