Normally each organiser manage the candidates and send the mails independently. The past years we make only a little coordination for people who applied for many places, but this coordination was made directly between the implied organiser.
I know that Museomix Nord has already sent the mails since some weeks, they don’t extended the submission time, but I don’t know for the others.
Don’t forget to confirm also to the people who wasn’t selected, maybe they will apply in an other location during the second call for participants.
In about a week I will post a message here to ask organizers to confirm if they need a second call but if you know answer before you can write here or send me a message.