User blog comment:Rfx9416/Theory: Eustass D. Kidd/@comment-1876594-20141124190840/@comment-24850639-20141126183605

They actually are. Think about it:  what sense does it make for the creators of the anime to not read the manga? It would make sense that they remain current as well, wouldn't it? So as manga readers with insight as to what will happen about 100+ chapters ahead of what they are currently working on, don't you think they'd use that insight to "enhance" the anime? Since we're on the subject, lets take a closer look at the anime's adaptation of these "D" hints:

MANGA: Doflamingo asks Law about his faith in Luffy, to which he responds that he feels "D" will blow up another storm. END OF SCENE.

ANIME: After Law responds the exact same way, Doflamingo is shown sprouting multiple veins in his forehead, before preparing a vicious attack on Law. Why the extra emphasis on Doffy's irritation at this?

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MANGA: In speaking of Violets betrayal to Riku, he mentions Luffy as a member of "that terrible/evil lineage"

ANIME: Refers to Luffy as having "demonic blood in his veins", basically calling him a demon. Demons = NATURAL ENEMIES OF GOD, quite literally.

Granted the anime does have its share of filler, to see that they dont drop hints is preposterous poppycock. They do it all the time, and honestly in much clearer ways than the manga does. You're right in that it they can't go that deep into the future, but I don't think that means we can't delve deeper into the times they HAVE shown Kidd so far.