VIT will scale with attack power, STR will scale but not as much

[AlexiIvaniskavich]

So... Are we going to get an NPC to exchange our strength accessories for some vitality ones? I don't want to waste the esoterics and gobcoats that were spent to get this gear.

As SE has stated that the value of STR to damage output will be REDUCED (not removed), probably no. STR isn't worthless, it's just going to be less valuable than VIT. You will do more damage with STR accessories than you would with DEX accessores, but just not as much as you would with VIT.