Alex Trebek Returns to 'Jeopardy!' After Announcing Cancer Diagnosis The longtime host recently made a video announcement and revealed he has stage 4 pancreatic cancer. Only one week after announcing his diagnosis, Trebek has already returned to production for the hit game show. Jeopardy! spokeswoman, to CNN The 78-year-old br promised fans that br he would “fight this” br and “keep working.” Alex Trebek, via statement Trebek’s contract with ‘Jeopardy!’ was extended through 2022 last fall.