Tbh i really don't care how they fix it or if they do. If they do nothing, I slap a zeta on finn and compete using the loop like everyone else. If that means traya can't keep up in arena (though I've seen little evidence of this. Took 2nd yesterday with traya and have seen few if any 3POs in our top 20) then so be it. I have 3PO and all the characters needed geared up to build pretty much whatever that meta ends up being. The most I'd have to do is zeta finn.
If they fix it by changing traya in the raid, so be it. As long as they don't break it where p3 is impossible then it's business as usual with maybe still needing to zeta finn and adjust my arena team eventually.
If they nerf 3PO or finn to the point that Finn's lead only works as good as it did before then I put my zeta elsewhere and we move on with life. 3PO is still good in a jtr p1 team in hstr and I think there are other haat solo comps with 3PO that don't involve loops. I made it 95% through p2 with jtr lead and 3PO. A littke tweaking and that's a solo or at least a three phase solo team and it doesn't rely on a loop.
So what I'm saying is we will move on from this no matter what they do.
But if they nerf finn to the point that his lead is less useful than before 3PO, thet should definitely refund the zeta for those that have it. And they need to avoid making p3 harder for preexisting teams since there are many guilds still struggling with hstr and they shouldn't be set back even further. I'm in neither of these situations. I don't have a zeta on finn and our guild easily clears hstr in a few hours. So I'm just trying to be objective on those last points.