the new Atra Ex potential is boosting it's damage by 18%, requires Emers Stones from DQ (which are super abundant). This now places it as 2nd best in the Meta because well, Atra Ex needed it. Does this mean get heavily invested into Atra Ex again? (assuming you still have yours and you just need to swap out the SSA's) absolutely not but it's stuff you can still gear alt classes or for something else on your palette that needs a buff. Should you get heavily invested into as starter gear? Kinda, if its all you have yes. Remember the power creep coming soon from the Ep6 raid, invest wisely or just burn resources to regret it later, do whatever you want

1. Stil
2. Atra Ex+
3. Liberate

As for Austere NT, doesn't really matter, it's not going to be massively noticeable despite us not having the numbers. The reliance on it's PB for increase dmg vs having that damage already out the gate already puts it lower than the other weapons. It's essentially a better PP battery and even in the event it somehow is super good (on par with Stil), it'll just be another hype weapon that gets put down not too long after it's buff