With the replacement the 4 series. All Coupes will now be an even number, 4 series, 6 series, i8, the later 2 door version of the 1 series will be badged as a 2 series. Even going to be a X3 with a sloped back known as a X4.
420i, 428i, 435i petrol models, 420d, 430d, 435d diesel models.
And being a Coupe the 4 will only have 2 rear seats.