The SA will not get these frames ; they simply cost too much and wouldn't give us a good benefit to cost ratio.
I've been discussing on Facebook a bit of releasing an "SA Ultra" model in 10/12/15 sizes that is about $50 bucks more that has about 33% more linear x-max, 20% higher motor force, a 25% higher thermal rating, around 1/2 the at-rest inductance, thicker magnet ID shorting ring, and newly tooled spiders and surrounds with expanding excursion capability. We would eventually tool a basket more similar to the SA-8 v.2 for this line but for at least a year would be sold with the 4-spoke frame as it still works out for the design.
We would keep the current SA line on board, simply doing slow tweaks as we have been for years, as so many folks like them and like the price point as well.