Oh what is that, you enjoy doing Mythic plus runs as a tank when the skittish modifier is in play? Well lucky you, the whole of Battle for Azeroth is going to feel pretty similar to that with tank threat generation being severely reduced.
To be fair the current system of threat generation in World of Warcraft is boring for most tanks. Everything sticks to you from the very first attack and the only time people die is on heroic when the enhancement shaman starts the fight before my glaives get tossed into the next pack (*cough* you know who you are *cough*). For your main character, this probably won’t cause any issues are your gear will help keep you ahead of the damage output of those DPS that go full taps before you even reach the enemy. But for your alt that is late to the gearing party? Get ready to use high threat abilities, tab target and taunt a lot. Now if only Blizzard could fix tab targetting so that it stops tabbing to someone so far away they almost classify as being in a different dungeon.
The baseline for threat of a tank is four times their DPS, which is a massive drop from the 16 times threat that an auto attack did. This reminds me of tanking in Burning Crusade, where it was a lot of work on my warrior, who at that time had low AoE and DPS just loved bursting whatever target (okay that hasn’t changed at all). I ended up not tanking for a while, because Paladins just did everything better, thanks to being the flavour of the expansion when Horde finally got a few Bubble and squeaks.
Like I said, this shouldn’t affect your main tanks, but alts and latecomers and people wanting to try out tanking for the first time might feel a bit overwhelmed. The full details on the threat can be seen over on WoWhead.