I do feel Companies are going to end up playing a massive role during this game, they talk about it being a very large aspect of it within the entire community, im thinking that its going to be something that the entire server population has a chance to affect through various actions regarding the future of Eorzea and the 3 City States.

As well as forcing linkshells to communicate with each other, join forces, and set out to do a job. Perhaps with Company Buildings it will end up being a new type of player run guild/organisation dedicated to a cause, as well as a place for your linkshell/company to hang out, customise and make their own, i have visions of linkshells coming together under one banner to fight the oncoming struggle, i feel as if im thinking on too grand a scale here though haha...

Possibly many linkshell crafters will have to get together and invent/create something new together that will radically change the way Eorzea is, like Culinary wonders(Giant Cakes), or the creation of a philosophers stone by a group of alchemists, carpenters, lacksmiths, armorers, weavers to create ships to tackle a threat at sea (Sahagin army).

Just a few of my many thoughts about the company system