Thanks to Jo-Ann Hall from the Navigator Facebook group for finding this out, here's what she posted...
"For all of you in the same boat I am (pun intended) who has just had their cruise cancelled, I was actually able to speak to a RCCL guest services agent a little bit ago. They are offering two options:
1. either a full refund or
2. If you take a cruise credit instead of a refund you receive an additional 25% on top of what your cruise was. They aren’t processing it over the phone, he stated that we would all receive emails today or tomorrow and it will give us instructions how to get either one. He said if you do the refund it will take about 30 days to receive it.
Of note, he sounded exhausted, defeated, and apologetic. Please everyone try to be extra nice to these folks. They aren’t at fault and they’re going through the same hell we are."