Under the current system:
SYD - SIN: 67,000
SIN - LHR: 92,000
SYD - LHR (Single Booking): 139,000
New system:
SYD - SIN: 74,000
SIN - LHR: 104,000
SYD - LHR (Single Booking): 158,500
To be fair, in terms of point devaluations go it isn't horrible but the increase in carrier charges for SQ is a bit painful. Definitely increases the number of circumstances where it makes sense to transfer points to KrisFlyer to access earlier availability and lower fees.
I also noticed the band 12 mileage has changed from 9,501 to 15,000 up to 9,501 to 20,000 not that it's really of relevance.