Empty Body Options

What would happen if the main flame of consciousness was transfered to the astral body and never came back. What would happen if a person astral projected and just decided never to come back to their body? Would they fall into a coma? Would they die?

As for the silver cord interpretation, I think that is the mental manifestation of the concept of being tethered to the body. I am sure most people like their body and mental concepts manifest physically. A lot of literature is filled with that concept. Couple those two together, it manifest. When I astral project, there is no cord. In fact I am not aware of my physical body. My body has been slapped, punched, pinched, etc and that did not even register to me while I was projecting. My perception of time is skewed, so I spent what seemed like to me a short time in astral mode, but in actuality was about two days. My family freaked. It was like I was asleep, but they could not really wake me up. What was even creepier is that I often sleep with my eyes open. The same thing happens when I am projecting my consciousness away from myself when I am remote viewing, or scanning a person or an object, or managing mental links anf backtracking. It is as if I lose all connection to my physical body. I am no longer aware of what is going on.

Anyways, what would happen if I lost track of time and did not return for a while. What would happen if a person just decided never to come back? Would their body be somewhat comatose like mine was or would they simply die?

I'm sure "you" would "die" at least in the traditional sense. Your physical body, lacking any animating force would cease functioning, but on the plus side you'd be totally conscious of where you were in the astral. My take on it is that the opposite happens to people sooner or later, the physical body dies and the subtler body(s) are freed from it. I've only heard of one case where that happened to an astral projection addict, a woman died in her sleep because she spent too much time there and supposedly lost connection with the physical; she was contacted in the astral later by her friends and they worked out what had happened. I suspect it can't happen without you choosing to have it occur, or perhaps fearfully obsessing about it to the point of death.

I wonder if an "empty" body could host a walk-in...? Or be possessed by some entity by force?