It looks like it was just for 3 games today, the $500, $2k and $4k, but the $200 was normal.
They are listed as 7500 max for next weekend again, so it looks like it was just a 1 day thing.
Strangely, it's not the first time it has happened, I recall a few months back it happened, also just for 1 day.
I liked the 3000 player limit, although I did miss the $2k because it filled up so fast.