Complex sentence: After Koro-Sensei's death, she resumes her acting career, becoming even more famous than before, and it is implied that she gets into a relationship with Nagisa, seemingly pregnant with his child.
Split into simpler sentences: After Koro-Sensei's death, she resumes her acting career, becoming even more famous than before. It is implied that she gets into a relationship with Nagisa, seemingly pregnant with his child.