IntactReincarnator
Will he achieve a way for Immortal Life? Why did you jump so much time and age of him? He can do thousands of kage bunshin with his chakra...would he already have more than 100.000 years of training with them? What about his life with his wife? Only 1 child? More more more details please. He can use thousands of kage bunsihn for reasearch on everything includin science...
how about switching to Asuma's POV by having him guard the exam sites throughout the whole exams including the one month respite and the concluding tournament, with shadows of clues of a soon to be brewing conflits showing their heads. This way you can highlight the differences of the changes of the teams without really having to do a battle sequence and just give cliff notes of those battles or tourny matches. Let it be all from his POV observing everything while catching clues in the shadows of future problems.