To be honest that's not a bad way to go out. Better than years and years of treatment for something and a slow death. But yeah, the detection aspect would be interesting assuming these mRna viruses could cure cancer.
This stance came shortly after I just buried my mother-in-law. Had been doing home-based hospice care for 3 (now deceased) parents of mine. Took 19-years solidly out of my life.
If we find a cure for glioblastoma the challenge would be detection before it's too late.