As someone once said (like it or loathe it) NSNA is an official Bond film. The guys who made it had the rights to do so. It's just is not an Eon Bond film - everything about it screams its difference. I remember liking it when it was released, even preferring it to Octopussy (I was 9 at the time), but time has not been kind to it and now it is just a curio for me.
Having said all that, it could only be counted as part of the Eon series, when they decide to release it in a boxset with all the other films. However, even then it will always be a different film. To make it an Eon film, you would need to add the gunbarrell and re-score it to include the classic Bond theme - or at least hints of it. And re-edit it to have a pre-title sequence, etc. Even the Craig films kept the nods to their heritage and feel like Eon Bond films, though the trademark/signature elements of the series were re-worked.
Edited by Bond... Raybond, 19 December 2013 - 07:40 AM.