The decision to finally step up and use the designation 2er is currently under intensive discussion in Munich.
The original E82 and E88 were considered to be adapted to the 2er but since the advent of BMW's strategy for increased models on it's compact architecture has brought the topic back into discussion.
The key is to seperate the Sporting incarnations of the 1er - Coupe and Cabrio from the traditional and lifestyle portfolio of the car in which this generation of 1er will see additional concepts arrive within the next four years.
The idea is the conventional Sporthatch will be joined by a Gran Turismo and Compactive Sports Tourer and other concepts so the portfolio will increase.
it seems logical to rename the Coupe and Cabrio so they reflect on the sporting designation of "2" which will also come with the Z2 Roadster and Coupe currently in development for a late 2013 introduction.
2 is also relevant to the style of the new car because it becomes more 2002 like , it will not be a Coupe variant of the hatch , the entire front facia will look different from the hatch as will the more 2002-like bathtub character-line.
The 3er Coupe and Cabrio will not revert to 4er.