I went to that link and from what I saw there is NO Barrel Nut involved, not that I could see anyway. There is some visual resemblence of the trigger group to the Savage Accu-Trigger, but that doesn't mean there is anything inside that is close to the Savage trigger group either. If Marlin copied the Savage accu-trigger without a license agreement there could be big time trouble. I am not saying that is what Marlin did, but that trigger looks awful lot like the Accu-Trigger from the outside. Hopefully Marlin is paying a royalty for using the trigger if it is a Savage copy.
Talk on that link kind of supports the idea that this new bolt action may come from H&R instead of Savage, and without a barrel nut I would agree... so far.
Unless there is a barrel nut there and I just don't see it, this is an in-house move by Marlin. Which by the way, is exactly the same way Marlin came out with the MR-7 in the 90's. (the same calibers too) Although the MR-7 copied something from Ruger, Browning, Winchester and Remington. Everybody but Mossberg/Savage.
You never know what infringements may come to light after they hit the market, and supply is stopped until a legal mess is straightened out. Which I still think is what happened to the MR-7.