Hisotrically it has only even been boxes that said the specific name of their product. Even then, we have seen some boxes just say "iphone" (as an example). I don't remember which generation this was (edit: the iPhone 6 and 6 Plus boxes only said "iPhone"), but I am not referring to the first. So really, if they are undecided, they could easily call the next product "iPhone" on the box and literature, and decide to give it a more specific name later.