YOLT can't be done fully and faithfully without wrecking the series, IMO. It's tragic, but YOLT has to based around Bond avenging Tracy, which means either:
quite clearly Lev you are an expert but surely with Casino Royale they effectivtly went back to the begginning and thus all the possibilities are open again
However, the producers have generally avoided whole-cloth remakes of earlier films in the series (the two prominent exceptions being the pair of Moore films with little/no Fleming plots: The Spy Who Loved Me (remaking the film You Only Live Twice, even using the same director) and A View to a Kill (somewhat obviously Goldfinger)... arguably the second half of Die Another Day is a remake of Diamonds Are Forever, also).
That the reboot in CR wasn't total (keeping Dench as M, most notably), I think indicates that the producers don't totally view CR as outside of the series, so why would they remake the SPECTRE trilogy (especially since they still may not have the rights to Thunderball...) if some portion of the idea that it's all one series is kicking around? Of course, "Never Say Never Again" was Thunderball, but that wasn't made by the Bond "establishment".