right now the president of the UFC wants to make that fight happen possibly in Cowboy Stadium. Both fighters still have about 1-2 fighters left to clear their respected division (Silva is 185, Jones is 205)....Silva has gone up to 205 before and he KO'ed both opponents in the first rounds, one of them is griffin which you see in the second GIF..
Jon Jones has gon out the way to say he doesnt want to fight silva because he looks up to him as a idol, so to him it would be a lose-lose situation...but this fight would generate so much money for the UFC, THEY GOTTA make it happen