Filling the place of the 5-Series wagon in the United States will be BMW's new 5-Series GT. Designed with American tastes in mind, the 5-Series GT offers the versatility of a hatchback while still offering the body lines of a sedan.
However, those U.S. buyers wanting a traditional wagon with a BMW badge will not completely be left behind - BMW will continue to offer a wagon variant of the 3-Series. But don't expect a huge spike in 3-Series wagon sales going forward as BMW sold fewer than 1,000 examples of the 5-Series wagon in the U.S. last year.
References
1. 'Crossover, and out....' view