Not sure about settled, but there was something on the intranet regarding negotiations having finished and the union would be balloting members on the offer.
I would doubt that there will be anything too exciting on offer since NATS has been pleading poverty, my guess is they're looking to get AAVA's back through as soon as possible and want something put to the staff.
Unless it's anything decent then I'm sure that a NO vote will follow.
I've no doubt that someone out there in Pprune land will know details of the offer and enlighten us, perhaps on the NATS forum so that discussions on the offer can be kept private.