Clek has finally showed pictures of their first-ever convertible car seat, the Foonf. Aiming to become the the safest convertible seat on the market, the Foonf will have a patented energy absorbing crumple system in the base, re-inforced with Magnesium, like their Oobr toddler seat. It will also be one of the only convertible car seats to come with an anti-rebound bar system for rear-facing use (if you don't know what that is, Britax uses one on its infant seats).
Weight range will most likely be 15-48 lbs rear-facing and then up to about 70 lbs forward-facing. Look for it this Spring, with pre-orders starting in December.