When will the Superblast 2 be restocked? Otherwise, what’s the best alternative?

I can’t seem to find them anywhere. Any idea of where online to look?

Alternatively, I’m looking for a non-plated, high-cushion, leg-protecting, marathon+long-run friendly ‘super trainer’ to add to my current rotation (comprised of the Pegasus 40 and Novablast 4) for said longer runs and marathons. Any fitting options you guys can think of? Keep in mind that I’m a wide-footed sasquatch.