The only hope now is that Nintendo finished the Octoling data and are hiding it in 2.2.0 and reveal it at a later date. We'll find out if they did from our old buddy, Nikki.
This update is mostly addressing bug fixes and thank Zap Fish, Weapon Balancing. If they want to prevent any more Octoling Hackers, they either remove the variable in the save file or finish the data that was causing the crash in the plaza in the first place. We'll find out on the 20th, unless Nintendo announces them before that, but that's a "wait and see".