How will Green merge to Blue work in practice?

[Makrill]

Only official answers please, no speculation. If you have the answers to this link to official posts or information about it.

How will Green merge to Blue work in practice?

If i have a toon with the same name on Blue and Green (which must be on the same account):
Will the toons "merge" or not if there is no room for the Green toons?
If they merge, what will happen with the No Drop items on the Green toon?
If i have a toon with the same name and class, will items (including No Drop) be moved to the Blue toon?