cross realm trading, wow. this likely means that AH will also be region wide, or "effectively region wide"
i don't play the AH anymore but wow, this changes the economy completely. more supply and more demand overall, way harder to create monopoly on end game BoEs (think about reagents now). there will be more price wars due to gold farmers competing for liquidity, this brings the prices down. there will be more whales (who aren't afraid to spend the gold cap to create monopoly on something), this will bring the prices up. interesting to see what will happen!