There was a post on the Legion alpha forums claiming that gold cap has been increased to over 2 million but has yet to provide any proof. http://us.battle.net/wow/en/forum/topic/20742960218#6
I asked WarcraftDevs on twitter if the cap had been increased and had no response.
Has anyone heard anything about an increased gold cap in Legion, and how do you feel about the cap increasing?
Also is there any macro or script that can be run to check the gold cap client side or is it all server side? It would be quite a lot of work to get gold on the alpha as you can't copy characters and you only start with 5k as far as I know.