what the new fulgrim means for horus heresy?

SO WHAT IS COMING FOR THE HORUS HERESY, WHAT IS THE NEW MYSTERY ARMY IN PLASTIC WILL HORUS HERESY GET NEW NOISE MARINE BEFORE 40K?
LINK:

Wayland games
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COMICS: https://www.lulu.com/en/gb/shop/martyn-young/project-blue-book-1/paperback/product-8jygdj.html
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I have a twitter now
@HEXISHUGS

Gaming:https://www.youtube.com/channel/UCsGnShKyDUv7HU2U09csdZA
enjoy