b. As of 2012 EASA are removing the CPL prerequisite for FI instructors teaching PPL.
c. CPL FI’s losing out to the MPL will have to compete to teach PPLs with unpaid 200 hour PPL FI’s.
EASA are only dropping the requirement to hold a CPL; they are not dropping the requirement to have passed CPL writtens. In terms of somebody's time, that is far more expensive than the 25ish hour flying course and test.
We'll see PPL instructors certainly, but I'd venture not all that many.
G