So when a player joins our guild its often their only character. Inevitably, one day the question will be asked "how do I make more AD?". So we direct them to our post found here. One of the key recommendations we make is that they use their empty character slots and make more characters right away to increase their Ad earning power. Going forward this will no longer be a valid strategy. You can read more about the changes on the forum here.
Caps are being implemented to AD earning potential for entire accounts instead of per character. So good news is: no more grinding AD with all your alts...bad news is: no more grinding AD.
-Daily rough Astral Diamonds refining cap is going from 36,000 per character per day to 100,000 per day for your ENTIRE ACCOUNT.
-Only first dungeon run of day will net any meaningful AD. This is also PER ACCOUNT, down from per character.
Recommendations at this point is don't waste AD/Zen on buying any new character slots unless you really just wanna try out a new class or need the extra storage. Also, grind your AD on the alts you do have while you can.