The Pokémon Company will deliver an update on Pokémon Legends: Z‑A’s upcoming Mega Dimension expansion tomorrow — a teaser many players hope will include a trailer and a release date — even as leaks and dataminer claims swirl around what the DLC will reveal.

Official update: trailer expected, DLC due before February

Publisher announcements picked up pace after The Pokémon Company signalled an "update" scheduled for 6 a.m. PST / 9 a.m. EST / 2 p.m. GMT. The company confirmed the news will appear on its official channels, so fans should expect video material on the Pokémon YouTube channel.

What is already known from prior official messaging: Mega Dimension will feature two forms of Mega Raichu and the Mythical Pokémon Hoopa. The expansion has been slated to arrive before the end of February 2026, which has fuelled speculation that the imminent update could include a firm release date and a conventional trailer.

Leaks and datamines: big lore claims and a partial Pokémon roster

Alongside the official tease, community leaks have circulated. Dataminers and subreddit posts — which are unofficial and should be treated cautiously — claim sizable additions to the expansion’s story and monster roster.

  • One widely shared leak alleges a cutscene in Mega Dimension explains the origin of Mega Evolutions: that when AZ fired the Ultimate Weapon 3,000 years ago it irradiated meteors and created the first Mega Stones, and that Mega Rayquaza was the first Pokémon to Mega Evolve after swallowing one of those meteors. The scene reportedly includes a character named Emma saying, "Mega Stones formed three thousand years ago when certain stones were irradiated by the light. The energy of the Legendary Pokémon—that was fired from the Ultimate Weapon." This account was posted on community forums and reported by outlets covering gaming leaks.
  • The same leak links the Anistar Sundial — a mysterious post‑game object from Pokémon X and Y — to the Mythical Pokémon Diancie, suggesting the stone in Gen 6 lore may be related to Diancie’s glittering appearance.
  • Separately, dataminers have claimed lists of additional Pokémon and assets coming in the DLC; these partial rosters circulate in fan communities but have not been confirmed by The Pokémon Company.
  • Developers and publishers rarely comment on early leaks and datamines. Until the official update is posted, these reports remain unverified and could change before release.

    Why the community cares: lore, mechanics and completionist goals

    If the leaked lore is accurate, Mega Dimension could represent one of the series' most consequential retcons: tying Mega Evolution directly to ancient events in Kalos-era history and to a major Legendary. That kind of revelation would reshape how longtime fans interpret mechanics introduced in Gen 6 and revisited in later entries.

    Mechanically, two new Mega forms of Raichu and the return of Hoopa (a Mythical with long story ties to space‑and‑time themes) suggest the expansion will blend narrative revelations with gameplay hooks — new Mega Evolutions, Mega Stones, or unique encounters players can pursue.

    What players can do now: post‑game activities to bridge the wait

    With Mega Dimension not due until early 2026, reviewers and guides recommend several ways players can keep exploring Lumiose City and its surrounds until the expansion arrives:

  • Pursue the Infinite Z‑A Royale: the post‑game tournament is a core activity that expands after the main credits and rewards Challenger’s Tickets and unique battles.
  • Finish Mable’s Research: progressing to level 50 nets the Shiny Charm (and earlier rewards like the Master Ball), useful if you plan shiny hunts in new content.
  • Hunt Mega Stones and unlock Mega Evolutions: many Mega Stones are tied to in‑game vendors, multiplayer ranked battles, and special quests — a completionist challenge that will pay off if the expansion expands Mega options.
  • Explore Wild Zone 20 and catch legendaries: post‑game sequences unlock Xerneas, Yveltal and Zygarde — powerful catches that add to the late‑game experience.
  • Collect Colorful Screws and Canari plushies: a lighter, platforming‑style objective that grants useful buffs and cosmetics.
  • Clear side missions: with over 100 side quests across Lumiose City, there are narrative threads and rewards many players miss during their first run.
  • These activities not only extend playtime but also prepare teams and inventories for any new encounters or mechanics the DLC introduces.

    Community reaction and expectations

    Fans are divided between excitement and caution. Some players are eager for potential lore deep dives that tie Mega Evolutions to franchise mythology. Others urge restraint and ask fans to wait for the official reveal, pointing out that leaks can mix factual files with unused or placeholder content.

    Speed of follow‑up content is another talking point. The promise of a February 2026 window raises hopes the expansion will be substantial, but will it focus on story, new mechanics, or both? The official update should clarify scope, release timing and whether more Megas are on the way.

    What to watch for in the official update

  • A firm release date for Mega Dimension and a trailer showing new areas, story beats or gameplay.
  • Confirmation (or denial) of leak claims about Mega Evolution origins and any associated cutscenes.
  • Details on new Mega Pokémon, how Mega Stones will be obtained, and any online or multiplayer ties for unlocking content.
  • A fuller list of which Pokémon and features are included in the expansion.

Expect the new material to appear on The Pokémon Company’s channels; the company’s YouTube page will likely host the official trailer and follow‑up information.

Until then, players can continue to mine Lumiose for side quests, trophies and Mega Stones — and keep an eye on tomorrow’s update to separate official facts from rumor.

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