There’s a large amount of content being released this week for BFA. I’m guessing Blizzard wants to wait until after that happens before laying on us any big Classic updates. So that Classic news doesn’t steal the new content’s thunder. There’s also a new raid being released mid April, I highly expect to hear a lot about Classic from them after that content has all been released.
Of course, but I wouldn’t bet on one being public. The demo was most likely their server stress test to make sure their approach to classic can handle it. They’re planning on intentionally leaving bugs from that time in. If you’ve played the game back then, you know that it was an extremely unbalanced and incomplete game. And it had some pretty big bugs. When running into stormwind, you could get stuck underneath it. You could randomly fall through the world and die. Sometimes the boat would just drop you in the water and kill you. Beta testing is going to take being able to have access to Blizzard’s actual records from back then to know what’s a new bug and what’s an old bug. We’re all useless in a public beta test for classic.