PPS value for code share
 

I've assiduously and successfully avoided code share flights to date. Unfortunately I have one coming up. Marketed by SQ operated by NH. Will I still get PPS value or it'll be nil or markedly reduced since the bulk of the fare will be handed over by SQ to NH?

SQ metal only. So, no PPS Value if you fly an SQ marketed but SQ codeshare partner (like NH in your case) operated flight.