He will absolutely not surpass madara, obito, or hashirama...why? Because the kyuubi is the source of his power and madara has tamed that kyuubi and hashirama is above any tailed beast and every shinobi and has proven this and obito is almost on equal ground with those two if not stronger than they were in their primes l
Naruto only gains speed and strength increases when he undergoes a power up and having speed or strength is nothing against those who are all around even nagato who was crippled manhandled bm Naruto who supposedly surpassed minato in speed an madara told Naruto when he was continuing to go from km to bm that he was weak and that was useless doing so
Actually Naruto never used his speed in that fight at all. So he kept up with Itachi's speed with his base KM speed. There's only a flash when Naruto uses his speed. Also you do know that we never seen Naruto fight at full power right? Naruto was exhausted by the time he fought Obito. Naruto went from his intense training with Bee to join the war He split his chakra evenly among all of his clones So Nagato and Itachi didn't even fight a half strenght Naruto So that fight is invalid. This War is Naruto's training for his KM.
Naruto was using his power (The power he took from Kurama is forever his as stated by Bee) then started to use Kurama's chakra (his clone) against Madara's wood jutsu then Naruto after Kurama became his friend. 1 KM clone that isn't even at 25% of Naruto's power (25% would be if Naruto made 3 clones plus himself) defeated Muu and 3rd Raikage with limited help So what do you think a full power Naruto can do? And if his power doublesat that? All of his power will double. Read below for if he gets his foreshadowed powerup.
With naruto getting the Other half of the kyuubi and becoming full powered, Will he finally surpass Madara and hashirama?
[It is most probable that he already surpassed EMS madara]
With naruto only Half powered, He is easily top 5 with His Bijuu mode.
Imagine Naruto going Full power, It would be Like doubling up his power.
What do you guys think of this matter?
Will this be Naruto's Final powerup?
Wel it depends on what his new powerup might be. Right no Naruto's power is on their level but his skills, smarts, experience and jutsu arsenal isnt on their level. With 2x the chakra, Naruto speed should be 2x as well which means he's speed would no doubt be the fastest. Another possible powerup is if Naruto gets the other half of Kurama and then fuse with Ma and Pa toad, combining KM/BM with SM to form SKM/SBM. With tht new mode I'm see Naruto defeating anyoneas if they are all fodders. I say this because Sage mode more than doubles the ninja's chakra so Kurama's chakra will become so OP. SM already has the best Sensory ability we've seen so imagine how it would be combined with KM's sensory ability then the powerup the sensory ability will receive.
In training, Naruto (KM) crushed a boulder just by trying to pick it up, BM should be stronger and we all know that SM has a 1 hit kill punch so add that power together then increase it even more (due to other part of Kurama's chakra). His speed, agility, endurance, strenght, powerup all jutsus, recovery rate, stamina, sensory and more chakra (All things SM increase) will be added and improved with the Speed, strength, powerup all jutsus, sensory, distribute chakra to others that powerup and heal others, reaction time, huge chakra which can be replenished by Kurama. So tha new mode would own all, his new improve sensory ability will let him sense any and all attacks and since he's fused with Ma and Pa, can also sense, use collaboration jutsus (like oil+fire+wind=boiling oil), frog song, dust cloud, help with strategies. Also Kurama can take over and fight for Naruto too so changing battle styles as well.