I dont really care the tab-targetting combat style, just make it fluid and fun like it is in Archeage or Guild wars, and thats it. But if its targetting please make sure to balance PVE so we can still do solo things as a campaing content (not like in wow artificial difficulty forcing you to look for people to kill a single semi-boss shit side campaing weird enemy) I mean, if you want to make a boss fight, we need to handle it and feel like we can do it solo even if its harder but just getting gud we can still do it (like in Lost Ark). Making a boss that targets you, and he can easy 3 shots your HP down without leaving the opportunity to the player to dodge/evade/tank it... Thats actually artificial difficulty.
BTW Im so hyped for the game, it looks awesome, the ''wow'' we deserve. Keep up the great work guys! you're killing it!