Top Loading
Washers probably aren't on major American appliance makers radar (aside from the oft spoken of but yet seen Equator model), for many reasons.
First, unless a European brand such as Miele, Asko, or AEG decides to give up patent rights and or certain patents have lapsed, R&D cost for a totally new washer would be huge, with no promise of making a profit.
By and large top loading H-Axis machines sold in Europe and elsewhere outside the United States, tend to hold rather small capacity, 5kg to 6kg. As many European makers of washing machines found out the hard way, Americans by and large do not subscribe to doing laundry daily or even more than once a week (if that). Rather they want large machines that handle big loads all at once. It is going to take some good R&D to come up with a large H-Axis top loader that is safe, reliable and stable. There have been and still are large top loading h-axis washing machines sold for commercial use in the United States. However, such units require bolting down, and for the most part have low extraction.
Finally there is the safety and liability issue. Americans love to sue anything that moves, and the old style of H-Axis units with outer tubs that pinched, snapped and or otherwise closed before the lid was shut brings not only design problems, especially for those with motor problems, and of course children, but the real issue of a lawsuit if a consumer looses fingers, or some how is injured. Again many European units have moved towards single door style H-Axis machines, but those designs may be under patent.
Whirlpool, IIRC patented a H-Axis unit sometime ago, but nothing ever came of the thing.