The first three pieces of Fallout 4 content were announced today by Bethesda. Bethesda makes it very clear that these are not the only pieces of DLC content coming. In fact, they say that there will be more coming after these announced DLCs but they are not yet ready to expand on those just yet.

Alongside this news is word that on March 1, the price of the Season Pass will go from $29.99 (USD) to $49.99 (USD). Bethesda talks about the reason behind this change and what it means for those who purchase the Season Pass before this date.
Given the expanded DLC plan, the price of the season pass will increase from the current $29.99 to $49.99 USD (£24.99 to £39.99 GBP; $49.95 to $79.95 AUD) on March 1, 2016. However, if you already purchased the season pass for $29.99, nothing changes - you still get everything at no additional cost— the full $60 offering of add-on content for the original price of $29.99. In addition, if you didn’t buy the season pass yet, there is still time: anyone who buys the Season Pass for $29.99 before March 1st will get all $60 worth of content. This is our way of saying thanks to all our loyal fans who have believed in us and supported us over the years.

Bethesda also notes that there will be betas for the DLC, allowing you to play earlier than the release date specified below. All you need to do is register at the Bethesda website and fill out the form. Bethesda also notes that they're still working on free updates for the game for all platforms alongside the Creation Kit.

Enough about that, let's see what's coming in the first three DLC releases.
Automatron
Price: $9.99 (USD)
Release: March 2016

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The mysterious Mechanist has unleashed a horde of evil robots into the Commonwealth, including the devious Robobrain. Hunt them down and harvest their parts to build and mod your own custom robot companions. Choose from hundreds of mods; mixing limbs, armor, abilities, and weapons like the all-new lightning chain gun. Even customize their paint schemes and choose their voices!

Wasteland Workshop
Price: $4.99 (USD)
Release: April 2016

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With the Wasteland Workshop, design and set cages to capture live creatures – from raiders to Deathclaws! Tame them or have them face off in battle, even against your fellow settlers. The Wasteland Workshop also includes a suite of new design options for your settlements like nixie tube lighting, letter kits, taxidermy and more!

Far Harbor
Price: $24.99 (USD)
Release: May 2016

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A new case from Valentine’s Detective Agency leads you on a search for a young woman and a secret colony of synths. Travel off the coast of Maine to the mysterious island of Far Harbor, where higher levels of radiation have created a more feral world. Navigate through the growing conflict between the synths, the Children of Atom, and the local townspeople. Will you work towards bringing peace to Far Harbor, and at what cost? Far Harbor features the largest landmass for an add-on that we’ve ever created, filled with new faction quests, settlements, lethal creatures and dungeons. Become more powerful with new, higher-level armor and weapons. The choices are all yours.