Starwood has released their update for the increased Cash + Points rates today.
Of course it's buggy and your old reservations will have been modified (Awardwallet sent me dozens of emails). They will show with the new rates but this is no reason to panic. No points have been deducted and wisdom of the crowds on Flyertalk says that the rate will be honored at property level. Seemingly only spg.com shows the (wrong) new rate and the hotels should still see the original reservation.
The other good news – hotels have indeed released some more Cash+Points availability that they did hold back on. The Aloft Bangkok now shows C+P rates for many dates for example. So it's time to check upon the hotels that did not give you C+P before. Also don't forget that it's always worth a shot to contact the hotel directly – they may open up rates for you.