No, they already turned FFXI into XIV fast paced battle endgame.
What? lol

Even with everything that's come since, FFXI doesn't have one tenth the pace of FFXIV. It's impossible when everything is menu and macro driven and everything takes like 3 seconds after pressing to happen. FFXI couldn't be as fast as FFXIV if it wanted to, the engine just wasn't designed for it, especially since the networking is deliberately bottlenecked at dialup speeds.