I'm surprised that standard Onepass award for the DEL service is 90K roundtrip, but I checked and it is. That's absurd. PEK/HKG/NRT are 60K roundtrip from N. America (not including Hawaii). BusinessFirst, on the other hand, is only 120K standard award, same as PEK/HKG/NRT. So only 50% premium for flying BusinessFirst. Unfortunately, can't find any dates in Dec with standard BF awards available.
I doubt you'll ever get standard awards for flights around Christmas holidays. Forgetaboutit.
Right now, the only outbound available standard economy awards in December for EWR-DEL is 12/6 and 12/7. Return is available 12/7, 12/13 & 12/14. Same whether you're non-Elite, Silver or Gold. Not sure about plat.