Last news was that there will be no NPC crew in 2.3. They might add it later, just like they could add NPC wings later. I don't get my hopes until I see an official announcement.
And as someone who flies on his own, this is my greatest fear with the multi-crew update... I don't have friends who play ED, I fit sessions in at odd times around real life and can't guarantee being on at any given time, all of which add up to a disaster if they make big ships multi-crew and then don't allow NPC crew. The solo flyer like me will be at an instant disadvantage.
And before anyone buries me under a mountain of salt, I know FD have been keeping multi-crew close to their chest, and no-one knows how the hell it will work, but if there is no inherent advantage in flying the bigger ships mutli-crew, why would you want to do it?
What does the guy running the weapons console do whilst you are mission running simply shipping Biowaste around?
It's bad enough being a lone player and getting interdicted by a wing, or jumped by a wing in a RES, but if you add into that mix being out gunned because the Annie you're fighting has separate pilot, gunner and shield operator and you're trying to handle all 3 positions on your own, then I forsee an exodus to Solo mode or Private groups.