Once you enter post-Searing Ascalon, you will find a Storage NPC. It will cost you 50 gold per character to access the vault. Pre-searing characters cannot do this.
Which I think bites! If I have to pay 50g for each character to use the box, I want at least one more line of space for each character that I add to the box.
the 50g is nothing... change at best, but what about the limited space? In effect what they're doing is removing the storage space for alts. I think I'd sooner not be able to share with my alts and do as we did in D2 and drop/hide our stuff or give it to a trusty individual to give back when we return with our other char.