After having destroyed Blofeld's lair at Piz Gloria, Tracy and Bond go to Munich for their wedding. Irma Bunt is there too, keeping an eye on them. And just before the last chapter of the book, she gives a call to Blofeld (to prepare Tracy's death, can we presume), who is hidden at "Hotel Metropole", situated, according to Fleming himself.... on Como Lake!

An hotel (or a big house) on Como Lake? Isn't it exactly where Bond wait for Mr White at the end of CR (the movie of course)?
I don't know if it only is a coincidence, I surely don't say that indicates the great return of SPECTRE, but Eon seems to be now so faithfull with what Fleming wrote, that, may be, they already decided (and prepared) to take some existing Fleming (and Spectre or Blofeld-related) material for Bond 22...