Are there any plans to update the 2.5 with the new expansion, and if not, at what point will most of you stop carrying it as your primary ... im seeing the Tss drop and its not quite there yet, but at some point i may be tempted to get another wep and switch out epic for the clicky,
Thoughts pls !!!

I'll stop using it as my primary if the focus effect (8% hate reduction) becomes available on another item.

Hate reduction would have been a perfect focus effect for our Solteris tunic. I'd prefer it on the Ashengate/Frostcrypt tunic as well, but I'd settle for it being on the Solteris one.

Agreed.

Until such time as I can acquire a different item with a similar/better worn focus effect, I'm very unlikely to give up this epic, even though it recently turned 3 years old. A couple more upgrades and my epic will officially become my worst piece of gear.

Its become clear that I'm expected to keep it equipped until forever.

I'm also looking forward to the clicky becoming broken once again with the level inceases to 80. I assume we'll have to yell for a couple months to get it fixed, again.

i stop useing 2.0 when i win primary from solt2

The agro reduction focus is > anything else i've seen so far.. Looks like i'll have it for some time to come.

Are there any plans to update the 2.5 with the new expansion

No. There will be no epic 3s in SoF.