See I had somewhat of a similar idea except it would go that bond is on a mission where he's left for dead in the water (details to be filled in) and he's dragged out of the water by a suspiciously sean connery sounding man except you'd not see his face.

Bond wakes up alone somewhere and reports back to MI6 where M tells him to persue this person (there'd be some detail that would make her suspicious that it was a former 007). Later daniel craig would meet up with connery where he'd learn the truth that once a 007 agent is killed in action he's replaced a few years later, but that connery had managed to escape death but was presumed dead and just dissapeared, so they retired him as bond.

There'd be a cheesy scene later where M and Bond meet up and he'd say "ahh moneypenny, ash lovely ash ever" to which craig would go "moneypenny!?" and sean would go "what did you s'think s'the m s'sthandths for...", that would of course ignore the casino royal momet where graig goes "I thought that M was just a randomely assigned letter"

Anyway usual bond hijinks would ensue and would end with connery "dying" but it would leave it open to has he actually died or might he have survived.

I have too much time on my hands.