Yes this is true, but the Lumix line is too consumer centered, when i think on a AF replacement i'm talking about a new body, smaller and slimmer, something like the KineRaw mini or Digital Bolex, i'm a FS100 design body lover, i know almost 99.95% of people hate it, but to me have a perfect size for what it is, even Blackmagic was after a unconventional design, ok it don't work very well at first but a least they're changing things.
Well, thinking it twice maybe this can be feasible, Canon have 1DC, right? Sony will launch a 4K alpha camera (last year NAB they have a prototype), so? make sense that Panasonic will launch a 4K camera in a DSLR body, but i don't know if the Lumix line will be good for this, just that.