I enjoy how the MSQ has a Scenario Guide that lets you know there's a quest available to pick up in order to continue with the chain.

I feel they should include this option for all the jobs in the game. So when you go back to playing a class you haven't touched in a long time and you level up to a new quest it'll remind you where to go.

I was leveling up my Red Mage and the journal didn't really make it clear where the NPC was to pick up my lvl 50 quest. I had only unlocked it at the start for 4.0 and until recently started leveling it up.

The same situation happened while I was leveling Samurai, as the quest NPC went through the various cities, I would forget where I had to go to pick up the latest quest.

This, for me, only seemed to be an issue when there wasn't a guild to go to where you would most likely find the quest you needed.