Possible, but I'd be guessing, that if they were to go that route, they would first announce that the exchange rate for reward points is now variable and depends on BTC price, so it would go down progressively rather than jumping straight from 1 sat to 0.5 sats.
The RP exchange rate depends on BTC price.
The exchange rate has been 1 sat/RP for a long time because there are only 8 decimal places for bitcoin.
Each reward point is worth 3.75% of the base reward. (Click
here to see the old post made by TheQuin.)
As the base reward is $0.002, each RP should be worth $0.000075. This means that each RP should worth around 0.3 satoshi.