Glad you liked it!
I know Letonna IRL. He'll most likely be back but as far as I know he has a lot of things going on right now. I think we're safe to leave him on the map for now - if someone is gone for a very long time, we'll usually remove them and patch up the collective holes. I don't think he'll be gone for very long, though.
EDIT: Regarding this RP, I would just go on without him. I haven't heard from Erno in a while, either.