The previous hackathon was near Zurich https://whispersystems.org/blog/hackathon-zurich/ https://whispersystems.org/blog/hackathon-zurich/, so it's certainly no

The previous hackathon was near Zurich https://whispersystems.org/blog/hackathon-zurich/ https://whispersystems.org/blog/hackathon-zurich/, so it's certainly not out of the question it will be outside of the US again, some time in the future.