Fidel's Rejuvenation

What's up with Fidel these days? After a couple of years of sickly obscurity, the man has apparently come back from the grave and feels more alive than ever. This comes only a month after Fidel gave a speech in which he talked about the impending (unavoidable) threat of nuclear war in the twenty-first century, and asked president Obama to be the man to step up and avert the 2012 vibe. First he was gloomy, now he feels like a spring chicken. Will he start repenting soon?