To tell you the truth: I don't know (but I will ask). Several people is asking these days the same question. For Arabic, Catalan, Turkish... Can you or someone please start a new thread in Development as this is totally off topic in this thread? Thank you.

On the other hand, if the event happens the host will be http://citilab.eu/

They have several rooms available with different sizes, including an auditorium for 400 people.