How reliable is this news source ( written in Russian )?
It’s as reliable as all other propaganda.
he clearly has neurodegenerative issues (look at his appearance with assad today). I would assume there are succession plans in place and the chinese will deal with that, try to game it, etc.
it is hard to take seriously when certain posters have been posting about his imminent death for a year, but he has something going on, and most likely has for some time.