In the Playstation bg3 article, if you look at the zariel tiefling, he has a 17 in Dexterity and an 8 in strength, both of which are impossible with point buy since zariel gives a +1 to strength, and no bonus to Dexterity.
Assuming no funny business for the presentation, felt like a soft confirmation that dice rolling will be in the game to me.
https://ibb.co/4Z5b9Fp