I have so many thoughts on this topic haha.
I know many crew still onboard across 3 different lines, and they're all quite honest on social media.
As for crew wanting to go back, I'm on a few crew groups and there are more who want to go back than don't (even people who havent been on ships for a few years want to go back), whether the people currently onboard will go back I dont know, but everyone I've talked to onboard will go.
Obviously logistically no one knows. Countries are changing constantly over who can come and go.
As crew, I would be up for all crew having to go into a 2 week quarantine when arriving at their embark port (I wouldn't mind two weeks of room service and naps before a crazy contract haha) before boarding for a contract. Although, vaccines seem to be coming along, but I think it would be hard for a lot of crew to get them at first, unless the cruise line was to issue them, as they do with flu.
Now the pay, not one person I know onboard has complained about lack of pay. One I know even said he would rather stay onboard with no pay than go home as while they're not being paid, they're not spending anything (free food, internet, entertainment, limited alcohol) and once they go home they know they wont be able to get a job, but would have to pay to live.
From what I understand those whose contract has finished are the ones who aren't being paid (but most cruise lines seem to be paying $10-13 a day, not ideal, but better than those stuck at home), the ones whose contract has finished but they still have to work as they are essential crew are still being paid. I havent heard of any crew working and not being paid. All this sounds like a lot of people all over the world right now.
The crew I persoanlly see complaining about pay are the ones at home, who were due to go back and are now at home with nothing and are finding it impossible to get a job and the industry they know has shut down.
While I keep seeing articles like this (usually from the MH) actually talking to crew onboard, personally, and the comments/discussions on crew groups, the majority are as happy/understanding as they can be in the situation, if your quick enough you can read the positive comments crew leaving on a certain lawyers posts, before he deletes them and blocks them from his page.
Sorry for the essay.
I have so much more I could add, but I will hold myself back.