This recent preview of the game mentions something very interesting...and it offers spoilers for a random encounter in an inn so if you're the type to not wanna know about the little things, don't look:
"Soon realising that getting to Markarth is a near impossible task, we stop at a nearby inn to get a room and restore our energy and health. As we should’ve expected, it’s not just your run-of-the-mill hotel, according to its owner, Eydis. She explains that the great Tiber Septim used to lodge in the inn as he raged war across the land, and you’re offered his room, being the fine warrior that you are.
Taking rest in the grand lodgings, you’re awoken by the landlady’s scream. Rushing to her aid Eydis tells you she has seen a ghost and, low and behold, sat behind in a chair near the back of the inn is the spirit in question. Calm to the end, a quick conversation reveals it’s one of Septim’s soldier’s spirits wanting to become blood brothers with Hjalti, the man he believes you to be. "
Soooo, since the ghost of a comrade of good ole Tiber mistakes you for Hijalti Early Beard, does this confirm Arcturian Heresy in your eyes? I'm personally really really excited for this sorta thing since it confirms Tiber was just a propped up image via what the Heresy had to say about other things. The most awesome thing, however, is that if it's true, then Lokhan has slipped back in as the Talos Oversoul and that we'll be seeing a lot more of Talos and Lorkhan in the story.
Also on a side note, this doesn't help my indecisiveness between a Dunmer and Nord since the journalist only encountered this whilst playing a Nord.