Ultimately, he faces more devastating circumstances: The boy he raised to become a Force-wielding hero is seduced toward the dark side, becoming one of the most powerful Sith Lords in the known universe. The Jedi apprentice is forced to become a Jedi master, fulfilling Qui-Gon Jinn's lingering wish to train up Anakin Skywalker. Regardless of how each sector of the fandom feels about the prequels, all seem to agree that Ewan McGregor is iconic as a young Obi-Wan, pulling back the layers of someone who Alec Guinness already turned into a legend.
We don't need a separate Disney+ series to appreciate the tragic and tumultuous story of Obi-Wan Kenobi, although we welcome one.