The main reasoning at the rear of this move apparently is due to consistency. Samsung wants all associated with its flagships released within the same year to achieve the same number - therefore if this pans away, in 2016 we'll possess the S7, S7 edge, as well as Note 7. That way there is no chance of some consumers let's assume that a Note 6 is really a generation older than the actual S7 edge, for instance.
This might also be designed to make the company's products easier compete with Apple, which will launch the iPhone 7 as well as iPhone 7 Plus later this season. Once again, a Note 6 competing using the iPhone 7 Plus might have been perceived as older by individuals who don't really know anything concerning the mobile market but do wish to spend incredibly high levels of money on phones.
Moving forward from the naming debate, the new Note is said to have a dual-edge screen, so we won't visit a Galaxy S7 edge+ starting alongside it like what happened this past year with the Note5 as well as S6 edge+. Furthermore, the Note 7 will even have curved glass upon its back, just such as its predecessor (which is actually pictured above).