The Next Live Letter is on October 31st, which means 7.4 is likely mid December..

[Hyperia]

The JP Fan Fest is October 31st and November 1st. It is highly unlikely they're going to release that soon after the JP Fan Fest. There's usually a few months after the final Fan Fest.

Yoshi implied that it could be as early as December as we wouldn’t have to wait long after the final fan fest.

On a side note, I find it amusing that almost everybody is complaining about savage scheduling and not the potential content outside of raiding in this thread.

[Amarande]

On a side note, I find it amusing that almost everybody is complaining about savage scheduling and not the potential content outside of raiding in this thread.

Most likely because (well, except for maximum gil making off of new crafted gear) Savage and EX are where you feel it the most if you don't get in on content when it drops (and don't want to wait for it to be utterly trivialized by later expansions). Everything else is going to be there forever, and is going to be current for at least a year (with the Fanfest schedule, we're looking at Heavyweight being XIV's Siege of Orgimmar moment, lol).

[Daralii]

Aside from Beastmaster launch and new Blue Mage levels, I don't remember what other content they have left to release for the expansion.

North Horn and Forked Tower: Magic, at least one variant dungeon, and I think the second ultimate was soft confirmed for 7.5X.

[ForteNightshade]

Yoshi implied that it could be as early as December as we wouldn’t have to wait long after the final fan fest.

On a side note, I find it amusing that almost everybody is complaining about savage scheduling and not the potential content outside of raiding in this thread.

Yoshida implies a lot of things. Not having to wait long could be February, March or even April as that is technically not as long as Dawntrail releasing in July. I suspect the earliest we'll see 8.0 is end of January, but I'm leaning more towards February or March now.

As for raiders complaining about the schedule, that's because the other content isn't really impacted by holidays. Nobody is World Racing or Week 1-ing the MSQ. At least not in the context of it being a challenge to complete.