First up is a new grabber blue color for the Karate Monkey. This looks great. It's high on my list of favorite Surly colors ever.
Second is a deep purple Troll color. This looks similar to the original Surly Pugsley color, albeit without the colored metallic clear coat.
The venerable Cross Check gets a super loud green color for this year. I love it.
In addition to the mid blade rack eyelets added to the fork last year, this year's bike gets an updated crown. Braze ons on the crown will certainly appeal to the breve/small front rack/carry stuff crowd.
The entry level Pugsley gets a bright, safety yellow color this year. It should stand out rather nicely in winter snows, or bright green forested trails.
These are just a few of the highlights coming from Surly for 2013. It's going to be a great year!