Two random PTR notes:
* Although passive corruption resistance on the legendary cloak is gone, the on-use effect is still there (just useless). That means you still can't tinker an engineering glider onto it, unfortunately.
* With all expansions topping out at level 50, I figured all of their profession consumables would be equally powerful until Shadowlands obsoletes them all. However, there still seems to be a definite hierarchy, albeit not as pronounced. For instance, BfA greater flasks grant 38 agi (regular 25), Legion ones 21 agi, and WoD ones 18 (greater or regular). Potions of Prolonged Power are actually kind of competitive; they only grant 40 stats vs. 129 for a superior BfA pot, but they grant it for 60 seconds instead of 25, so they're about 75% as good, and they grant stamina. Enchants for slots that aren't enchantable in BfA tend to top out at item level 50. BfA ring enchants are +9 secondary stat (6 and 4 for lower-tier enchants), while Legion ones are 3 (2 for lower-tier).