Sometimes, I feel like it would've been some juicy drama to have Mathias meet Pathonia again in Maldraxxus or something, especially if Flynn is there to witness it, just cause Shaw has started to take a different direction with his life, but also, it's sooo not necessary I feel for their characters. It wouldn't do much, and there isn't any closure Shaw really needs from her; he knows and acknowledges that what she did to him was incredibly abusive, and I highly doubt that Pathonia would ever come to feel even remotely remorseful. A reunion would just be her finding things to be disappointed about. It's still a pressing issue that the SI:7 has no heir for after Mathias passes.

Trying to figure out what Shaw was up to during Shadowlands tho is a headache LOL. I think he has obviously sent the SI:7 crawling all OVER the Shadowlands and the Maw searching for Anduin, doing everything in their absolute power to bring their king back, but I don't think Shaw would have gone with them.

With Turalyon now Regent Lord, Shaw is incredibly skeptical and suspicious of him, and doesn't trust Turalyon one BIT. I mean, look no further than Shaw insisting Genn should have been regent lord, he's an actual king. Plus, Shaw has shown to find faith in the Light something to be mocked, and Turalyon, though favored by the Nobles and a famous hero, hasn't been on Azeroth for a thousand years. How can you put someone in power of something you're not even remotely familiar with anymore.

Shaw stays in Stormwind to keep a strict eye on Turalyon, practically waiting for the man to slip. SI:7 agents around the Keep are doubled, both for protection and for surveillance. Shaw firmly believes it's only a matter of time until his hunch is proven right.

It's also my personal headcanon that once Anduin was FINALLY saved, and he decided that he wanted to run away and go into hiding, that the SI:7 has actually been covering for him. I have sooo many personal headcanons on how Shaw and Anduin's relationship plays out, and I firmly believe that helping Anduin escape the burden of his crown is something Shaw would 100% be on, and just cover and say that the SI:7 can't find him. You mean to tell me it's been 3 years and the fucking SI:7 hasn't found him? Come on. Shaw knows. He's just hiding him.