It's been about a week and I can safely say that I've made a tremendous amount of progress. Not only have I successfully completed the main story line, I've also got 100% in several other quest lines that I didn't have before. Luckily I do have pictures so here ya go:
Last time I posted here, I was at 69% total completion. Since then I've worked my way all the way up to 89% completion. You can tell from the image above that I've got literally 3 separate lines of mini quests that I have to complete in order to fully 100% complete the game. Everything else is done.
I've also unlocked a full set of legendary armor for Talion and I've unlocked the "undead" skin since I beat the game's main storyline.
And then finally the proof that I do indeed have 89% full game completion. I'm either planning to fully 100% finish the game tonight, or I'll save it tomorrow. But yeah, I should be fully 100% done with Middle Earth: Shadow of War in about a day or two. I'm excited.