I’ve done the raids many times on various pservers. I know that’s not exactly what we’ll expect, but I’ve beaten (and wiped) on those fights. They’re reasonably well scripted. They aren’t super hard but they aren’t freebies either.
We’ll stomp MC, win and wipe on BWL, and then in AQ40 problems will arise. Don’t get too crazy about LFR and how easy the game is, MC and BWL are easy. AQ40 and Naxx is not.