It's actually interesting, if you think about it.
If the prevailing theory that the CIC is, in fact, clearing a backlog then this means that by now, a bulk of the lower segments have been covered, meaning that this recent jump to 490 is a sign that it's reached a stage where there might simply be no more lower numbers from the backlog to clear.
This could signify that we're running close to the end of the bulk of the backlog clearance (which would play into the "big changes and back to the old system in September").
On the other hand, it could also signify the start of a series of higher number picks (for an indeterminate time), until this segment is also cleared before things suddenly turn back to normal.
Purely conjecture at this point, but it's actually quite interesting to watch these scores.
Don't lose hope, be patient and try to make sense of the scores - there must be some method to this perceived madness and we aren't exactly privy to it at this point, which is okay.