FT817 replacement?

I have mentioned this before, but I am truly amazed that Yaesu has not updated the FT817.  OK, I have heard the "if it ain't broke don't fix it" argument but on simple commercial arguments I think they must be stupid. There is a worldwide market (500000?) ready to upgrade yet I think they have now missed the window of opportunity as sunspot numbers are falling.

I wonder if any sharp eyed, sharp eared readers have heard any rumours of an imminent replacement?