Ahh really great to hear! One of the few game franchises I still have lots of love for.
I wouldn't ask for much since I'm confident it'll be great, I'd only want a world like Fallout 3's (NV just didn't feel 'post apocalyptic' enough for me), and The Commonwealth! Dying to see The Commonwealth.
Also if the rumours of Three Dog returning are true then I guess it'd be set around the time of Fallout 3 which I'm fine with, don't want it getting TOO far in the future.