Marisae and Trinak won't be there this Saturday and maybe next Saturday due to other obligations.
In a related note, I know in my previous guild we had an "Absence" forum for this purpose and was considered good manners to give a heads up. We have lots of people in this guild so I'm sure spots can usually be filled as needed, but I think its always nice to have an idea beforehand of who's coming. I'm wondering if the leaders of a raid/event want to be notified when regular members (or members who hope to be regular) will not make it as well as the best way to do that if so?