Square Enix revealed the next big patch for Final Fantasy XIV titled "Prelude In Violet" in today's Letter from the Producer and it's scheduled to launch mid September. There's a lot coming with this update but the highlights include the following:

New MSQ, side story quests & sidequests: The Four Lords, Hildibrand Adventures, Doman Reconstruction

New dungeons: The Burn, Saint Mocianne's Arboretum (Hard)

New trials: Suzaku, Suzaku (Extreme)

New raids: Omega: Alphascape, Omega: Alphascape (Savage)

Battle system updates: Job adjustments, role action slots increased (to 10)

PvP updates: Quick chat update "Timed Attack" added, PvP HUD layouts adjustable at Wolves Den

Eureka 3rd installment: New region, Logos System added (Note: The new region is not called Logos)

The Lost Canals of Uznair: New dungeons

Gathering and crafting: New recipes, new fishing holes (Doman Enclave), Zhloe Custom Deliveries adjusted

Grand Company update: Captain rank obtainable, Squadron updates (New Command missions. New Squadron missions to obtain Captain rank)

Housing: Mannequins obtainable, new role playing housing status

Gold Saucer: New GATE Platforming Puzzles

Eternal Bond: New ceremonies added, Anniversary ceremonies added

Group pose: Minion actions, player walking/running motions added, lock time/weather, new screen effects

Additional updates: New tomestone, Crystal Tower requirements revised Duty Recorder can be used in more duties and features revised, The Unending Journey features expanded, Configuration data now saved to server (excludes display settings, not automatic)

In addition, the previously revealed Monster Hunter World collaboration arrives on August 7, 2018 and will be a permanent event. Like primal fights it will feature both a 'Normal' and 'Extreme' version. Also arriving on August 7th is the game's expansion to the Eureka zone titled Eureka Pagos. Final Fantasy XIV's companion app is also set to launch sometime in late July or early August.

Further reading / discussion: Reddit Letter from the Producer Megathread