Apart from the fact that SP will have the same director I see a lot of similarities between this moment in Bond-film history and the 1964 to ’66 ‘era’.
Skyfall ‘(re-)awoke’ the general (mostly non-fandom) public to Bond in a way that Goldfinger did so the very first time around, and even though they are not really the best in the series they have obtained a certain status through their marketing, imagery & extremely favorable PR from the media and ‘pseudo’ Bond fans, as I like to call them.
Goldfinger’s success meant that EoN would not venture back into bare-bones, story-driven Bond realism until the very end of that decade, and even that was a one-off.
My point is that, just as EoN used the GF blueprint for their next release after realizing it’s global $$$-making appeal, I’m certain they will have done so again - the SF formula that proved so successful three years ago will have formed the basis in shaping Spectre…
*They stuck with a one-word title in ’65 for TB – even more so now, the title ‘Spectre’ almost feels like a coda to ‘Skyfall’, even having the same # of letters.
*The theme song is again, as with TB, performed by a young British artist. Tom Jones was Welsh just as his predecessor and even seemed to be trying to 'do' a Bassey. Sam Smith & Adele are pretty much the exact same kind of British pop ‘act’.
*The scale has been increased (and the PR machine is also billing it as such) in a very similar fashion to how TB did in 1965, but the essential ingredients seem to remain.
Mendes & co will no doubt have woven a great deal more of that backstory-driven angst and introspect(re)ion into SP, and I highly doubt that we will get the return to 'good-old-Bond' form that we all seem to think is on its way.
But it will make loads of cash as it appeals to the wider public without really feeling like a true James Bond adventure (because as we know the general public are beneath fun-driven fodder...) and there will be the same bland media enthousiasm that accompanied it’s predecessor.
To put it rather bluntly: EoN counted their beans after SF, and they are simply going to re-hash the concept until it stops making money, I’m afraid…
Of course - I hope I’m wrong. I really do.