In season 10, Sheldon moves across the hall with his girlfriend Amy Farrah Fowler ( Mayim Bialik), in the former apartment of Leonard's wife Penny ( Kaley Cuoco). The adult Sheldon is a senior theoretical physicist at The California Institute of Technology (Caltech), and for the first ten seasons of The Big Bang Theory shares an apartment with his colleague and best friend, Leonard Hofstadter ( Johnny Galecki) they are also friends and coworkers with Howard Wolowitz ( Simon Helberg) and Raj Koothrappali ( Kunal Nayyar). The character's childhood is the focus of Young Sheldon: the series' first season is set in 1989 when nine-year-old prodigy Sheldon has skipped ahead five grades, to start high school alongside his older brother. For his portrayal, Parsons has won four Primetime Emmy Awards, a Golden Globe Award, a TCA Award, and two Critics' Choice Television Awards. Continue to tune in to see if George’s health problems get any worse or if his awkward encounters with Brenda evolve into something much deeper.Sheldon Lee Cooper Ph.D., Sc.D., is a fictional character in the CBS television series The Big Bang Theory and its spinoff series Young Sheldon, portrayed by actors Jim Parsons and Iain Armitage respectively (with Parsons as the latter series' narrator). Young Sheldon airs on CBS on Thursdays at 8:00 p.m. That’s maybe not for the best considering what’s ahead for his character, but the audience can decide for themselves on that. That feels like too big of an event for the CBS spinoff to bypass, so I’d wager until that, and his official grad school admission to CalTech happens at 14, George Cooper will still be around. The question, though, is will George die in Season 5 of Young Sheldon? At the moment, I’m heavily leaning towards no unless we see Sheldon jump forward a couple of years in age and see his discovery of the affair. Of course, this can be easily fixed by introducing more time jumps in Season 5 and elsewhere, so it’s not something fans should be too concerned with. Iain Armitage is 13 years old, so eventually, Sheldon Cooper is going to need to age with him, or it may start to look weird.

Young Sheldon could certainly change the previously established story of George Cooper’s death, especially with the rapidly aging younger cast.

The big bang theory season 2 episode 7