[orpheus2]

Looks like there might be a link after all. Here's the link for the ending of Alicization. Warning Heavy Spoilers

Spoiler for Speculation:

Now then, what if Volume 10's Versus was a glimpse of what the author is planning in the event he links his two works. In this way, Haru will face off against Star King Kirito in his home grounds. The theory is that the selection for the Level 10 is to find a person with the highest skill and reaction time. Once a player reaches Level 10, he will be transported to UW to stop the Star King.