I like the idea of an auction house for valuable items. That is a good idea and a way to utilize that wasted space they say is an auction house in Limsa.

Now that being said I think they are going to do some amazing things with the current Market Wards given the time to implement it and the upcoming content. For all we know Companies could have a huge role in Market Wards and give more functionality to our retainers. You will notice retainers are all "Level 1" right now, and chocobos aren't even in the game. Who knows what they might add...maybe a retrieve function or delivery from retainers on the field etc(Not really a thought out idea just an example).