New Magnepan to replace 1.6?

The 1.6 has been in the Maggie line quite a bit longer than the 1.5 it replaced. I have seen two dealership sites that have their demo pair for has both a black and a white demo pair for sale.

So the question is, has anyone heard anything about a replacement for the 1.6?
Seems they dont pass off new models or versions every few years like too many in this industry do....good product sells itself.