All the healers still have offensive spells, the intent seems to be to move away from the healing oGCD meta, which for me is a welcome change.

It's very likely you will have still have downtime, it's very likely you will be able to weave damage spells.

Healers do still have to be able to complete msq solo remember. The only thing that remains to be seen is has damage been increased or will it remain roughly the same.