I think 7.1 will be pivotal whether or not I'll stay subbed throughout Dawntrail, because it will expire somewhere in November.

If 7.1 / 7.15 won't deliver satisfactory content (MSQ, side content, etc), I'll just let it run out and find another MMORPG to sink my time in. I'm the type of person who can only focus on one at a time, and currently I have 2 options: coming back to WoW or Guild Wars 2, which I have the base game purchased from when it was released. If neither turns out to be a good option, I guess it's a gaming hiatus, because MMORPGs are the only type of game I'm interested in.

Also, I'd leave without any harm, fully willing to return to XIV if the situation improves!