I'd love to promote 3rd line center from within. However, I don't think Killorn has the foot speed this season to step into center at NHL. And Conacher didn't play much center last year so I think his chances of stepping into that role is low.
That leaves guys like Wyman and Pyatt and Kyle Wilson who have all pulled NHL shifts as a lower liner center, with Wilson having perhaps the best offensive acumen. But are any of those guys Dom Moore replacements? Hard to say. Nate Thompson is still the front runner if you ask me. Labrie and Connolly and Conacher all vying for a winger slot.
I'm probably gonna get dismissed for this comment, but barring another FA signing, I think the door is open for Namestnikov to have a fabulous camp and grab the "open" 3rd line center role. He's a fantastic two-way center -- very responsible in his own zone -- and I think is a dark horse to sneak in a win that spot.
Can't wait til camp