Dan is, obviously, since he's talking after lunch and he wants to actually meet Bruno. Bill is, because Abra's talking and he's interested, and also he's Shiny too :) Obi-Wan/Ben is there, and he'll be at all of the sessions. Na'vi Jake is there because he likes gatherings. He'll sit at the back. Tommy will be there, making notes. His usual stuff will be floating around him, and Rawm is beside him. Younger Jedi Jake is there, possibly with the kids? Older Jedi Jake is there too, and will happily help look after little Greg and Alex. Greg is there because his dad told him to go. Kelan will be there if Sookie is there. Miguel and Beardy Miguel will both be there, with coffee. Eggsy is there, because it's knowledge, innit? Adam is there too because he also likes the gatherings.
Not sure about Rachel. hmmmmmmmm
Hródolf will be in and out, because he wants to see his Uncle Dan and Abra, but he's checking on his mam as well.
Astrid isn't there, because she's tired and sore and almost at full term, and new baby needs to hurry up and get here.