Hi and welcome to the Gigabyte forum.
I would imagine that the boards are indeed new, however when a company like Gigabyte has the motherboards fabricated they are in massive quantities with all the printing done and just because they change a chip or some other component doesn't mean they are just going to discard all their stock of PCBs because of some printing is now wrong. I think this is fair enough as long as the motherboards are in fact newly produced items.