Metabones just announced they have completely redesigned the optics for their APS-C SpeedBoosters (Fuji and Sony). No mention of whether the m43 SpeedBooster optics will change at some point in the future. Press Release
As far as I understand, there would be no point in changing the optics to the new design. The mu43 version already have sharp edges, unlike the old aps-c speedboosters.
