From FFXI, I would like to see FFXIV's take on FFXI's Campaign Battle...

Currently Bozja sort of feels "a little like" Campaign Battle but it mostly feels "one-sided" as once you've gained access to the entire area there isn't any risk of losing access to the area based on any "Garlean successfull counter-attacks" to the outposts in the area.

I would like to see an area where it is active server wide where we can control the field with a weekly tally that determines the locations of all outposts as well as nation rank such as which member of the Eorzea Alliance has control over the field.

Success in battles could also rank the player up in the grand company.

I would also like to see content become available for crafters to reinforce player captured outposts

I think this could be pretty interesting and something fun to do.