We've discussed about organizing a Bonenkai for this year in the past. The last bonenkai we did was in 2004 which we jointly organized with the Baltimore Japanese Meetup group. I've spoken with Kenji San the owner of Cafe Japone and he's happy to host the event on December 11th.
As of now, I don't have an idea on how we can make the bonenkai different from our regular nomikai. Perhaps, we can just let it flow on its own and enjoy what's likely to be a largest nomikai we've had since 2004. (We had over 100 people at the time)
If you have good ideas on how we can handle this year's Bonenkai, please let me know. When more ideas are gathered, I think it's good to form some kind of organizing committee to better prepare for the event.
So here it is for now. Bonenkai on December 11th!