Hi John,
Without going back into too much of the detail covered already ;

- Currently there is a difference in how the FAI treat IC and electric powered models.
There should be no difference - however that's done.

- If the limit is increased or removed for FAI the other classes will follow very quickly in most if not all countries.

- The 2x2 limit and noise limit will still apply - so not much will change.
Though something will need to be done to keep honesty in noise tests.

Brian