I'm going to one in about a month, provided COVID border restrictions or flare-ups don't send it sideways. There's always a slim chance.
It's worth pointing out though, I'm in Western Australia. We snap into a short, sharp lockdown when we have any community transmission. Aside from those few rare occasions, (and not being able to travel,) we've been living as though COVID doesn't exist for almost this entire pandemic.
So yeah, I'm really not worried about attending a con.