Top-loaders will continue to be manufactured, but I believe the wash plate/infusor design will dominate. It wouldn't surprise me if traditional agitator machines go the way of the dinosaur, eventually.
My suggestion would be to bring back the suds-saver, but since the new HE top-loaders use so little water, it probably seems silly to reuse wash water. Not to mention that fewer people have space for a laundry sink to hold the reserved wash water.
That's why I bought a traditional top-loader (2006 Frigidaire) a few years ago. I wanted the novelty of an indexing tub and a traditional agitator and figured I'd better snag one while they're still available.