>>11491073
Honestly, Fulgrim getting a human form probably has a higher chance than most of the Chaos Primarchs because of the Iron Hands / Ferrus Manus connection. Ferrus dies so early in the Heresy after doing so little (he basically just jobs to Fulgrim right at the very start and thats it, that's his entire contribution, while killing Ferrus is what cements Fulgrim to the dark side and ultimately leads to snussy piercings >>11490886) that it would make sense to give him someone to fight and/or give collectors a reason to double-dip. Of the other Primarchs the only other ones that have substantially different models are Mortarion and Magnus, and their demon models are much more toyetic.