‘World of Warcraft Classic’ demo has a one-hour time limit
Blizzard is also enforcing a 90 minute 'cooldown' period.
Blizzcon 2018 Virtual Ticket includes 'WoW Classic' demo
You don't have to attend to try out the base game sans expansions.
'WoW' add-on 'Battle for Azeroth' brings the series back to basics
Blizzard also announced a "Classic" version of the game's vanilla, non-expanded original content.