After square enix saw Classic-Wow BETA break the internet even was the #1 on twitch for a day. Im sure they will release a FFXI classic server. TERA already is working on that LOL
I dont miss the "Lving process on FFXI" or the horrible limit break quests but i really miss the end game: Sky, Sea, einherjar, dynamis, limbus, KSNM99 the merit parties. You had a great variety of end game content and obtaining gear felt a lot more special.
There are a lot of stuff i love of the "RETAIL FFXI" the idea you can farm ur own ultimate weapons, the idea you can get lv 99 alone, the idea with certain jobs + trusts you can solo 75% of the escha/reinsejima mobs etc.
But i like the idea of a classic server until WoTG expansion to be honest. This server will stay forever on that expansion and square enix do not have provide any extra content affecting the updates of Retail. Just pay the electric bill every month