I can't tell you for sure but I'de assume that they're going to be a lot higher than they were at the beggining of this season. I'm lucky enough to have tickets to the New England game.
http://www.titansonline.com/wpimages/PDFs/2006_ticket_prices.pdf ok, if put the season ticket price over ten then you have the face value for one ticket. i.e. - if the season ticket price is $350 1 ticket is $35... as for scalpers and aftermarket, outside of ticketmaster next summer look for a double face minimum mark-up. You might have better luck on the street and then again you could get screwed. I have purchased psl's, so I'm "stuck" with the whole lot.
I still have an article I clipped listing 2005 NFL average ticket prices. The good news is, we were #30 at $47.59. The highest average ticket price was the Pats at $78.40. With this year's turn-around, I expect our prices will increase.
I have gone to probably 10 games in the past 2 years, bought all of my tickets on the street, never sat upper level and have never spent over $30 on a ticket, I expect that all to change though