Help with platinum?

I got this for Christmas and absolutely loved it. Solid 9/10 and GOTY for me. Anyway, I've never platinumed a game but I'm thinking this could be it. I was aware I needed multiple playthroughs but I thought it was only two. I chose the ending where I chose not to take his hand.

Looking at the trophies though, there are 3 endings... Is there a way I can do one run of new game plus and get the platinum?