Looking for some help:

Had my mRTW booked from April 29 through June 14 under the old rules (2 stopovers + destinations). It has become quite clear that my destinations are "impossible" to do (work pressures and other reasons) and I am therefore looking to move it further down this year when the situation stabilizes. Original itinerary (60K to Europe in Y) was booked August 2019, but then the points were refunded and rebooked as a proper 160K mRTW in J. Will I be allowed to postpone my trip to September 2020 or they are gonna say its invalid and be forced to cancel?

Current itinerary is YOW-YVR-NRT-ICN-SYD-ICN-PVG-HEL-CPH-TXL-FRA-VCE-ZRH-YUL-YOW.