I can't reasonably tell. By what has been reported, Bg3 will be an extremely item heavy game. There could be gloves that heal by hit, but need you to have heavy armour proficiency.
There could be an op light armour benefitting dex builds. There could be various items letting anyone cast defensive spells. You might be required to play duel wielding. Or with a two hander.
I'll do solo after finishing the game. Knowing encounters in advance and preparing a fitting build sounds more enjoyable.
