The roofline of the new 2 Series doesn't appear to have to changed all that much from the current 1 Series coupe, but the front and rear fascias have indeed been smoothed out. (Truth time: As much as your author adores the 1 Series, he's always found its rear end to be, well, weird.) It looks good, seen here in M235i guise, with large wheels, slimmer headlamps and large air intakes on either side of the front fascia.
The 2 Series is expected to come to the States, likely in M235i and 228i variants, though rumors suggest that we won't get a non-M 235i model. The M235i is expected to be powered by the N55 turbocharged inline-six that we currently enjoy in the 335i sedan, producing something like 320 horsepower. The 228i, unsurprisingly, should use the 2.0-liter turbo-four from the 328i, making around 240 hp. Both engines will almost certainly employ eight-speed automatic transmissions and six-speed manuals.
Look for the new coupe to make its official debut in the coming months, with production scheduled to start in November.