I think he will be a fashion model.
What is Magnus Carlsens new career!!??

My guess is he's going to be modelling something in Norway, or making a cameo in a commercial/movie/TV show.

Poker might be a good candidate, or maybe he'll be a long-term advertisement figure with some company.

Breaking news at chessvibes.
http://www.chessvibes.com/reports/breaking-magnus-carlsen-starts-fashion-model-career-at-g-star/#more-27145

This doesn't really surprise me -- being under the pressure of the professional chess circuit, especially for someone so young, seems to warrant some kind of outlet. Carlsen modeling some new fashion down a catwalk doesn't fit with his chess image, but at least he gets to have some fun and escape the pressures of professional chess while at the same time probably making a nice amount of money.
I was thinking like Estragon that it would be some sort of promotional deal -- but even if this model thing turns out to be a joke I still think it's a reasonable possibility.

Ok, I know it's linked in the comments of the news story... but for those that skip comments you'd miss out on this:
http://nrksport.no/sjakk/1.7200825
Which is a video of Carlsen's photo shoot with Liz Tyler. For some reason to see Carlsen dressed up and posing really got me laughing by the end

This is really a shame. He shouldn't debase himself like this.
You mean he shouldn't ruin his geeky chess-player image by being hot?

But.... but... he looks like a neanderthal.
Yeah, but a hot neanderthal? ... because that's what he was going for lol
I want to see him walk into Linares fresh off a photo shoot with his hair all done up in a leather jacket and sunglasses or something... that would be so funny

Professional Justin Bieber impersonator
Brilliant! but would'nt Bieber be his mini-me?
I suspect he's getting a consultant's gig for psychotherapists, to give Anand and Topalov and Kramnik nightmares.
yeah, checkersgosu's is better.
Im a bit sad he has a "new" career but they said it is a side career and will not affect chess.. hopefully not!
http://www.chessbase.com/newsdetail.asp?newsid=6483
Here are some of the things chessbase said..
So what are the options? Soccer player in the Norwegian national team? Wine taster? Tennis? Radio sports commentator? Orator? Ambassador to China? Here's some help: none of the above. Something completely different.
But it is big, and he will be very visible in the news for the rest of the year (at least). Anyway, you are on your own. Of course you are not going to guess it. Never. Not in a million years.
Something tells me he will be a News person..
What do you guys think?
REVEALED: A Fashion Model!