One “Young Sheldon” fan theory proposes that the entire series is an in-universe documentary of Sheldon Cooper’s childhood, as evidenced by the fact that adult Sheldon actor Jim Parsons narrates the show despite Iain Armitage portraying the character in his younger years. Whether or not this or some equivalent theory turns out to be true should be clear by the time “Young Sheldon” ends, which may occur sooner rather than later, despite Armitage wanting “Young Sheldon” to surpass “The Big Bang Theory” in length.
Executive producer Steve Holland discussed “Young Sheldon” ending in an interview with TVLine that the outlet quoted in a broader piece about the prospect of Season 7 being its last. In short, Holland explained that, for the time being at least, the producers of “Young Sheldon” are treating the show ending in its upcoming seventh season as a distinct possibility. “It’s not my decision to make. I don’t think we’ll know for a while, but I don’t think it will effect the first half,” Holland said. “But as we get near the end, I think it will play out differently depending on whether this is, or is not, the final season.”
Regardless of what these forces beyond Holland’s control end up deciding about “Young Sheldon” Season 7, the story it’s telling, of course, has a finite end point prior to the start of “The Big Bang Theory.” With this in mind, the current pace of “Young Sheldon” likewise suggests that its end is imminent.
Sheldon’s move from Texas to California is coming up soon, which should be Young Sheldon’s logical conclusion
From “The Big Bang Theory” canon, fans of “Young Sheldon” know that at 14 years old, Sheldon Cooper moves from his birthplace of Medford, Texas to Pasadena, California, where he attends CalTech University. This time in his life is also turbulent for his family, with his brother Georgie (Montana Jordan) getting married and his father George (Lance Barber) dying that same year. While “Young Sheldon” could theoretically continue in the wake of each of these developments, Sheldon’s move and these major changes to his family life would make for a fundamentally different show.
When “Young Sheldon” ends, then, seems contingent not necessarily on its episode count, but when in the series’ run these events take place. At its current pace, these things should happen in Season 7. Of course, there’s nothing stopping the producers of “Young Sheldon” from slowing down and drawing out this final year-or-so of Sheldon’s childhood in Texas to encompass more episodes than has been usual for such a length of time. Nevertheless, based on the pace of its story and executive producer Steve Holland’s comments, “Young Sheldon” is concluding soon, and if not at the end of Season 7, then most likely in the next couple of years.