English (Google translation):
Making SoulCalibur

• Page 1[translate.google.com]
  
• Page 2[translate.google.com]
  
• Page 3[translate.google.com]

Japanese original:
『ソウルキャリバーⅥ』ができるまで

• Page 1[www.bandainamcostudios.com]
  
• Page 2[www.bandainamcostudios.com]
  
• Page 3[www.bandainamcostudios.com]

Google translation:
Dengeki PS Vol.670 "SOULCALIBUR VI" x "NieR: Automata" collaboration commemorative staff roundtable full version [Dengeki PS][translate.google.com]

Japanese original:
電撃PS Vol.670掲載の『SOULCALIBUR VI』×『NieR:Automata』コラボ記念スタッフ座談会完全版【電撃PS】[dengekionline.com]

Official book

• Japanese official book[www.amazon.co.jp]

Base design from SC3 era
https://twitter.com/masuooyama/status/1334594082773979137

Rough drafting
https://twitter.com/soulcalibur/status/1334335428111962112
https://twitter.com/soulcalibur/status/1334335250873208832

Celebrate 2 year anniversary of SC6
https://twitter.com/masuooyama/status/1317835426208518144

Battle dress story
https://twitter.com/masuooyama/status/1337049597491994625

Concept art
En: https://twitter.com/soulcalibur/status/1337022300692987904
Ja: https://twitter.com/soulcalibur/status/1337022153783271425

Background art
En: https://twitter.com/soulcalibur/status/1337022837412904963
Ja: https://twitter.com/soulcalibur/status/1337022689484001282

From SC4
https://twitter.com/hidero4ca/status/1333652123410579458

From SoulEdge
https://twitter.com/masuooyama/status/1340643682379124739

Base idea for Raphael's Nouveau Soleil
https://twitter.com/masuooyama/status/1332256370398089221

Raphael's concept art
https://twitter.com/soulcalibur/status/1332255083942199296

From Hideo Yoshie (art director)
https://twitter.com/hidero4ca/status/1338322832908906500

Concept art
https://twitter.com/masuooyama/status/1338375662290173954

The official SOULCALIBUR Twitter account
https://twitter.com/soulcalibur

Takakashi-san @ Director of SOULCALIBUR 6
https://twitter.com/masuooyama

Motohiro Okubo @ Producer of TEKKEN 7 and SOULCALIBUR 6
https://twitter.com/achilles_Okubo

Hideo Yoshie @ Art Director
https://twitter.com/hidero4ca

Kayane interviews SOUL CALIBUR VI Producer @ EVO2018
https://www.youtube.com/watch?v=wfn1vfyFhgU

Google translation:
The case game "10 Years of Darkness" has trained "Tekken" into a fighting game that sells best in the world.[translate.google.com]

Japanese original:
格ゲー“暗黒の10年”は、『鉄拳』を世界一売れる格闘ゲームへと鍛え上げた──世界市場に活路を拓いた戦略を訊く【バンダイナムコ原田勝弘インタビュー／西田宗千佳連載】[news.denfaminicogamer.jp]

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