The dealership I visited recently spoke of increased power and torque as well. No more details however. No information on whether it will be a V6 or another iteration of the YD 4 cylinder engine. No mention of whether it will come from Thailand, Spain, or a factory in another country despite me pressing them fairly hard on the issue. I know the people at this dealership very well, get on with them well, and have bought 7 vehicles off them. I think if they knew, they would tell me. Me thinks they just don't know anything yet.
I would suggest that Nissan would be unlikely to put the same (or similar engine) in the Navara/Pathfinder as they put in the Patrol as they would be pirating sales from one model to the other. Unless that is, they intend on dropping the patrol ute from the range when the new model patrol is introduced...