Well, some people just need to receive a PM. Desire seems to be the only one that disappeared for real. What you could always do is reopen the RP for people. Or message the people who showed interest in the first place, but didn't join on time. We aren't on the ship yet, so people can still join ICly too.
That is exactly what I thought too. We talked this over with Rhine in skype already. I will get into work, till then can you adress @User whether he is interested or not?