Few details of the new pick-up have been revealed so far, with Chevrolet set to give a proper introduction to the car at the Bangkok show.
From the teaser image, we can see the vehicle will adopt a significantly more car-like appearance, with the clean headlights, grille and fog light surrounds following the European design trend already seen in the Volkswagen Amarok and the new Ford Ranger.
The mid-size pick-up has again been developed in collaboration with Isuzu and the architecture will form the basis of the next-generation D-Max.
The next-generation Holden Colorado will continue to be sourced from Thailand. The Chevrolet-badged Colorado will go on sale in its domestic market towards the end of this year, with Australian sales expected to commence either late this year or early in 2012.
Holden's Jonathan Rose admitted the car unveiled at Bangkok would preview the new Australian Colorado range, and said more details would be released as its launch approached.
"We can confirm that there is a new Colorado range on the horizon," Mr Rose said."The Chevrolet show car to be premiered in Bangkok marks the first phase in the reveal process of the new range. We will make more announcements around Colorado in Australia in due course."
The current Colorado 4x2 accounts for 11.6 percent of the 4x4 pick-up/cab-chassis segment in Australia, trailing only the Nissan Navara and the Toyota HiLux.
The Colorado 4x2 is significantly less popular (due to the availability of the Commodore-based Utility), and makes up just 1.8 percent of its segment. Sales of both variants have lost around three percent market share so far this year.
In 2011, Isuzu has sold more 4x2 D-Max models than Holden has sold Colorados (164 vs 143), although Holden leads by more than 1000 units in the 4x4 category (1757 vs 745).