We were on the EBPC in November and they did not do any testing while we were onboard since the ship was fully vaxxed. We tested when we arrived on the first day and that was it. So I really don't know what they will do for Canada and Hawaii. Definitely new territory.
As far as not seeing the Hawaii cruises on the website, I am sure there there have been a LOT of cancellations but they will probably prevent booking until they get things finalized with the ports. Our FB group had people cancelling daily, yet we couldn't change our room to anything other than GTY until (1) they finally announced the cruise was going to happen and (2) they assigned all GTY rooms. Once that was done, there was quite a bit of availability for new bookings. My guess is, if the Hawaii cruises can't happen, they do not want to give more refunds or FCC than they need to. And, at this point, they are trying to get the ship down to a certain threshold of passengers. It was sold out so to get it down to 50 or 60%, they need a lot of voluntary cancellations. The EBPC went out with around 900 passengers when all was said and done and that had been fully booked for a really long time. I expect Hawaii will probably be the same. I think the official announcement game right around the 60 day mark but I don't remember for sure.