Yes, yes, yes!! the idea that immediately springs to my mind is Scorched-verse, present time, set in Doorland: River telepathically reaching out to Lupin to let him know she's all right, or from a moment in her current home timeline ("Serenity"?) wanting his help/training/input with something. Could take the form of a dream for him (...so in fact, after we wrote it out on musebox or gdoc, etc., I could post it to Scorched for broadcast mind, if you liked?)... whatcha think?