As the game makes more money is there any chance the quality of content will improve as more resources could theoretically be put into the game?

The game has gown greatly. Revenue will have increased. This would allow more employees to be hired. Of course there is the hope that the current employees would also see raises and rewards for creating a product that has attracted so many customers.

And this growth is all very recent and the changes/improvements will not happen overnight. But at what point should we expect to see more?

I hate to think that all that extra money could go towards non FF14 projects.