Very likely.

I'm not sure they care though. Their servers would probably choke if they had a large increase in playerbase and the engine is too old to make any significant game changes to keep a large playerbase hyped. They've had multiple chances to increase their playerbase, the most noteworthy being when the WoD expansion in WoW lost 5 million subs, many came to try FF14 and subsequently left. Enix seems perfectly content to sit on the small group they currently have who are fine with how the game is and milk them via microtransactions rather than ambitiously expand or offer better value.