They never said soon, and I don't think they ever said it was coming back, just that they would look into it.
DAILY CRYSTAL BOOSTER SIGNS OFF
We are removing the Daily Crystal Booster from the Store effective 8/29/2017 for Android and iPhone users. ... We are reviewing alternative formulations of the booster pack and hope to bring it back in the future.
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Lmao. "Everything" comes in august