I was panicking a few minutes ago but asked around.  The issue will be over in a few hours, and any crash will be momentary.  Only 11 blocks or so were affected and it'll all be over very quickly.  By tomorrow morning, we are back to business as usual.

Maybe we see a temporary dip, but that'll resolve eventually, because this issue is not really a big deal except for now.  We don't see many hard forks and I'm sure the devs will be much more cautious in the future after this has happened.