SPN: I've Got a Theory! SPOILERS for a late-april episode
There's a new casting spoiler for a late-S4 episode here and my read on it is impacted by both Rising Son (the comic book) and the newly released John Winchester's Journal.
If you think that John never slept with another woman after Mary died, you'd be wrong. It's stated specifically - if not explicitly - in both RS and the Journal that in the spring of 1991, he slept with a demon in the form of Sam's teacher, Mrs. Lyle. I believe that Rising Son #6 made it very clear that Mrs. Lyle is Lilith.
While Mrs. Lyle's body seems to be destroyed, (a) that may not be the case, and (b) obviously her demon-self-spirit escaped. Is it possible that Lilith somehow allowed herself to get pregnant by John with some sort of demon-human hybrid/merger thing? And that is what results in the 18 year old son who's going to show up in Jump The Shark? There's no discussion of any other woman in all of the Journal, and the timing for Lilith/John is very close to spot-on if you assume a standard human pregnancy, and even more perfect if you assume that demons don't carry pregnancies for more than a few weeks or months.
If you think that John never slept with another woman after Mary died, you'd be wrong. It's stated specifically - if not explicitly - in both RS and the Journal that in the spring of 1991, he slept with a demon in the form of Sam's teacher, Mrs. Lyle. I believe that Rising Son #6 made it very clear that Mrs. Lyle is Lilith.
While Mrs. Lyle's body seems to be destroyed, (a) that may not be the case, and (b) obviously her demon-self-spirit escaped. Is it possible that Lilith somehow allowed herself to get pregnant by John with some sort of demon-human hybrid/merger thing? And that is what results in the 18 year old son who's going to show up in Jump The Shark? There's no discussion of any other woman in all of the Journal, and the timing for Lilith/John is very close to spot-on if you assume a standard human pregnancy, and even more perfect if you assume that demons don't carry pregnancies for more than a few weeks or months.