I see Nate being WORLDS ahead of Dustin In the boxing. I see strength not being as much of a factor for Nate at 155 as It has been In the past as he's Incorporated more eggs / fish Into his diet..where as he's been predominantly vegan, plant based on previous fights..leading to Issues In strength, allowing him to be controlled easier on the ground. I would expect a much bigger and stronger Diaz at 155. Worth noting that previous fights In which that happened were also In a pre usada era.
I see his jiu jitsu probably being better than It's ever been, given that he's been training with Kron(son of Rickson gracie) for 3-4 years now. So, should Poirier take him down..he's going to be facing some of the best bottom game In the division. I don't think anyone who takes Nate down right now Is going to have an easy time. Not unless you're Khabib. This fight Is rough for Dustin everywhere It goes and quite honestly It's a terrible style matchup for him.
He doesn't get credit but Nate has Improved a great deal In the past 3-4 years. He's in his prime and I would compare him to peak Nick at this stage of his career. His previous run at LW and his record don't paint an accurate picture of where he truly stands skill wise as a fighter and In the division currently. Although maybe they did for him at the time.
I'm sure Poirier will try to box with him a bit and probably also take him down, but he's likely to be heavily outmatched In both areas.