Likely and not without reason. His first full game tune-up was in the playoff game with the Steelers. He looked rusty and inconsistent, as he had in closing for the regular season, home field securing game, but as with that game moved the ball effectively enough to help the Broncos win. What comes next is why Peyton might not retire. He still looks rusty against New England, but it's New England, still one of the best teams in the league, and he puts up a modest 176, but with 2 tds and 0 ints, ending with a pretty good 90+ rating on the day and more than assisting Denver in reaching the SB.
Denver needs better O line play if Manning returns. Carolina's front got into the backfield too easily and often. I was worried that if anything made this a Seattle II debacle that would be it. But Peyton mostly got the ball out of his hands faster, did a great job of reading the blitz. He only got real help out of Sanders and part of what was wrong with the Bronco offense is tied into the sudden lack of production out of what should have been their surest pair of hands.
Anyway, I could see Peyton thinking about a part two, if Elway is interested. The sell isn't difficult. He doesn't have to produce the yards he once did, though he can produce more. He just has to do better on ints than he did in the regular season, which was partly the product of injury. So you won this year. Take a promising young qb in the draft and let Manning do even better. That's one way to look at it.
The last time a team won with a fine game manager and made a move at the qb position it ended with the SB winning coach on a tv network within a couple of three years. Don't change what worked unless you have to.
That said and while I completely understand Peyton wanting to write a better year than the last as his professional epitaph, I still hope he retires. The ending can't be any better and he really doesn't have anything to prove after the New England game or in any event. His legacy as an all time great is cemented. The rest is what?