Since there is no definitive answer on how this is going to go, all posts are speculative at this time. Including this one.
I think it would be a bummer if I spent a ton of time playing alts and getting the PAs for themselves only to have them over-written by my mage's PAs (almost maxxed.) I've deliberately not maxed my Mage's PAs because he has all the ones he needs filled in with only the crap one like open Major Life Rift ones.
So, I ask Trion please do not waste all the time I spent actually playing the game on 4 different toons getting 700 PAs between 3 toons and 900 on my main.
I'd like to see a PA pool where all 1600 of those PAs are given to the account. Then I can spend those 1600 as I see fit across all 4 of my toons.
The only other PA option that I can think of is that you bump up all my toons to my Main's 900 PAs, which doesn't seem reasonable.