Why would Law sacrifice his life for Luffy to live ?
For Bepo maybe, but Luffy? No way
Oda had no reason to introduce the lifet timespan reducing effects of G2/Ivankov's power if he hadnt planned for Luffy to be in Roger's position one day : fully knowing he's about to die very soon
Yes I'm aware he will be in Roger's position, so I was trying to see if Law giving off his life in that case would fit.
But who knows, I think that Law possesses a noble soul deeply inside, he already saved Luffy's life once, of course he wasn't giving his own to do the job.
It will wholly depend on which kind of relationship the two will have instaurated by EoS in my opinion.