I believe the idea (for Planet at least) is to exchange boards and away you go.
The Ego, E2, and E1 with Zero B boards will have software which complies with the new rules.
As for cost well thats down to all the companys to decide on.
I am trying to find any markers that can not be capped so I can put a list together.
If anyone has any info please post on here.
Russ