They have already answered your questions so I'm not going to say anything about that. But maybe you don't know (or maybe you know) that you have to call them before being in implied status if you don't want to lose your coverage. They won't send you a new health card, but your number will remain active in their system http://www.health.alberta.ca/AHCIP/temporary-residents.html
That's what I had to do last year and no problem at all
Problem is, if you don't do this, then you'll have to wait another 3 months after receiving your new work permit in order to have your health card again.