If this rumour proves to be correct, it will be interesting to see how this new system will fair against Sony A7, which for now is the only FF MILC system. I know that Leica lives in a separate world, but once they step out of the RF system, they will be the subject of comparison against similar systems.
After all, even Leica aficionados will think it over, when deciding between the new system and a Sony. And even the lenses bit will not stick, as one can use Leica M mount, or Zeiss glass, on the A7.