Well. That was abrupt. No Smallville invasion here, huh?
I like the way you're telling the story. The shift from journal entries to third-person narrative is done very well, and it's keeping my attention. You're giving away some huge hints, like Clark's published work "A Year On New Krypton," which strongly implies that Clark/Superman was only gone a year before the NK situation was finally resolved.
But because we don't yet know how it happened, you've maintained the narrative tension necessary to keep the readers' interest level up. And you've only given us little glimpses of Lois's viewpoint so far, but I'd guess that she'll figure in the story far more dramatically than just as a side note.
Nice work! Looking forward to the next chapter.