Chapter 45 ---> "Before The Storm"
Chapter 48 (Three Chapters Later) ---> Hawk-Eyes Is Mentioned ---> Zoro is Looking for him
Chapter 49 (Following Chapter) ---> Mihawk's Slash (He is Teased)
Chapter 50 (Following Chapter) ---> Mihawk's Full Introduction ---> Zoro Finally meets him
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Chapter 1078 ---> Narrator "A World-Changing Incident gonna Occur"
Chapter 1081 (Three Chapters Later) ---> Man With Burn Scar is Mentioned ---> Blackbeard is Looking for him
Chapter 1082 (Following Chapter) ---> Ends With Whirlpool
Chapter 1083 (Following Chapter) ---> Man With Burn Scar Full Introduction ---> He meets Blackbeard
PS: Due to this Arc being much bigger than Baratie Arc, then such Scenarios might take more Chapters to occur
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It's quiet Possible that just like Krieg showing up on Baratie with his Army brought Mihawk upon them
Saturn leaving Mary Geoise & coming to Egghead will attract attention of Man With Burn Scar
In other words, York's Confidence in being able to Survive against a Yonko + CP-0 + Gorosei & his Insane Fleet isn't cuz She has Seraphim.
Her True Plan was asking Help from Man With Burn Scar & it's possible that this entire Incident was his Idea
Why do you think York believes She can become a Celestial Dragon even though She just became an Enemy of WG?
It's because this Man scares the shit out of WG (That's why they Guard Tarai Current, that's why they build Tequilla Wolf, that's why They treat CDs as Gods ... etc), it's all so that they don't Awaken this Man (Think of him as Beerus of OP World)
He is True Reason WG fear Poneglyphs (Ancient Weapons don't scare them as much, for example, They weren't much interested in Pluton Blueprints, it was Spandam's Idea), but Vegapunk's Study of Poneglyph led to York learning about Him and since She is Greedy, She chose to side with this Lurking Legend