LOL, it's more honest than "1D&D." I honestly feel a bit insulted by the marketing BS there.
So, don't think of it in terms of Edition, because that's always been marketing jargon. Think of it in terms of engine, like in a video game. This is the forever engine of base D&D, and by that standard "OneD&D" is honest and straightforward. They will do new typical editions, in the publishing sense, but they have no business interest in completely overhauling the engine under the hood (Race and Class are more like body detailing, not the engine).