It's a tough situation right now, but "unofficially", yes.
Ponycon 2017 left the convention commitee and the hote in debt. So much debt, in fact, that they are asking fans to donate $35,000 to get a new year. Apparently too, moving from NYC to Long Branch (which is a huge move) was expected to lower yhe attendance by around 50%. That's what they EXPECTED. But it was actually 70% lower.
Fillycon was... different. There were way less people and there was managerial problems I learned. First of all, me and my gf were able to get in the first whole day without paying. Exactly. There was other stuff that I know that I can't share. And i don't want it to die yet. But without a date yet, it probably wont happen this year. I know people running it, and this is depressing.
The only one left is Hascon. Though that is more of a children's conference and business meeting and not a fan convention for us. We are not the demographic and that leaves nothing left.
I would want to try Ponyville Ciderfest, but Pennsylvania is way too far financially for right now.
This is very frightening, and if anyone need support, I want to help