I just remembered something I really liked about Wyll in the epilogue. When you free him but unfortunately could not save Karlach (because you are a poor Vampire spawn) he'll tell you of his recent exploits. They are nice little adventure stories and I got the impression he had been up to a lot in the past months.

Since he is an experienced monster hunter, it would be cool if he give you tactical advise in certain situations or just lore bits about certain creatures - just like Gale will usually help you solve any logic or magic puzzles and you can Karlach about killing devils at some point. I have never had Wyll with me in the Goblin camp but rushing in does sound more lawful-stupid than lawful-good to me and also marks someone as a poor teamplayer. Forcing you into a dialogue like with Lae'zel when she is really fed up with you not visiting the Creche, sounds like a better option because it feels like you are doing something with the character.