I was going to give a brief summary of each in the first post, but don’t really know much either. Happy to be corrected or expanded upon if anybody knows more…
Keys from the Golden Vault - short adventures based on heists
Glory of the Giants - like Fizban’s Treasury, but with Giants instead of Dragons
The Book of Many Things - I have no idea what this will be,
Phandelver Campaign - kinda what it says, assuming a mix of adventures and setting
Planescape - 3 book slip case format, like Spelljammer
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Phandelver is probably the least interesting to me having finished a 2 year campaign set there only last year.