It is really difficult to think of any really "good" outcomes at this point. I don't and never have believed that someone took Dylan for a custodial reason, i.e. out of "love". If he is alive, it is hard to imagine that he is not suffering some terrible fate. And there is no guarantee he would ever be found to be rescued, if this were the case. I can't wish him alive if he is to suffer every hour of his life.
I also do not believe Dylan left the house voluntarily, since he stopped all contact on Sunday. I suppose it is vaguely possible someone familiar to him came by and told him he would give him a ride and that Dylan could use his/her phone (adding in the coincidence of Dylan's phone being broken beyond use) and then instead tied Dylan up or did something to disable him. But it is all too many coincidences for me; his phone ceasing to work, Dylan not being able to use a landline for any purpose, not even to call his mom to get some phone numbers, someone knowing where Mark lived and guessing right that Dylan would be home alone when he was meant to be gone, etc. or even someone just stopping by and on the spur of the moment deciding to kidnap Dylan. It is all too ludicrous to me, when taken in totality. And Dylan venturing out on a chilly morning on foot, when he had a ride coming by lunchtime and had not called R, is also beyond reasonable to me. So with all that, it does not leave me much to work with, as I see zero evidence that he would run away.
But of course, there is nothing to say my feelings are right.
I guess I have followed too many cases, or the wrong ones, to be able to summon up much optimism when a missing person case, children in particular, goes on for months. Yes, there are the few we all know by name who were later found alive, but the reason we know their names is because it is so unusual.