We do know that "the conversation" doesn't require a dying target (see: Rodrigo and Cesare, and Micheletto for that matter), but who 'merits' such a conversation in-universe? Seeing as Leandros at least is depicted as revealing Niccolo Polo's journal and the "unique" targets in [i]Revelations[/i] have dying words, but none of the "unique" targets in [i]Brotherhood[/i] do. I just came up with the latent telepathy idea as a way to incorporate Eagle Vision/Sense into it, as well as how it all seems divorced of any physical resemblance to what just happened... although it does give the perturbing image of Ezio deliberately not-instant-killing several of his targets, leaving them in pain long enough for these conversations (i.e. "WHERE is Jacopo?").

But still, Desmond the latent telepath-of-sorts, "conversing" with Lucy or Vidic? I'd be glad to see any fill along these lines, even if sad in the case of Lucy--

Lucy: "Hey I'm still here!" *perturbed at the idea of herself being one such 'dying words said in mortal pain because she was ONLY mortally wounded' target*