Oh there will be. You can bet there are people out there who are going to pregame the heck out of Classic launch who will plays for days straight with an hour or two of sleep tops. And that’s if someone hasn’t figured a way to exploit the system to level even faster. At the 5 1/2 day mark we’ll be seeing our first level 60s. As for Molten Core, that’ll be cleared within a months time, maybe as soon as the 2 week mark. Even tranq shot won’t be much of an issue if whoever is trying to be world first Classic MC kill just splits the raid and downs Luci in multiple save instances. Shoot, depending on how successful that is you could have an MC clear at the start of week 2.
The only thing that could derail a group is the same thing that has always worked against players: Blizzard’s servers. So here’s hoping Blizzard bought a fresh hamster from Petsmart and greased the wheel so the servers can stay on lol.