Can Djokovic win slams for 8 yrs in a row?

I don't think so. His desire will last him another 5-6 years max.

Interesting stats those and if he puts the work in he could well manage this feat and join this pretty exclusive list.

If we can accept that Feds is in his twilight phase of life, which is hard to say as he has just won the last slam that was played, and Rafa is going back to being the king of clay and not much else, then really he only has Andy Murray and maybe Del Potro to contend with, making it very possible for him, with his undoubted skills to win one slam each season for a while yet.

No.