Originally Posted by
Valence
They could obviously take inspiration from some solo games, which can for some of them have more production value cranked around their story quests (dynamic filming and screen compositing, storyboarding, action cutscenes, etc), but that obviously requires a lot more budget to achieve. For example I felt I was almost playing another game when I reached the epilogue of 5.3 due to the whole care they added with all those motion capture sequences in Mor Dhona and the Garlean Throne Room.
When it comes to gameplay sections, the ninja job quests or in from the cold are good examples of what you can do to shake things up. Another game series that is very good at this is Nier, swapping between platformers, railshooters, standard action gameplay, etc.