...? Maybe you dont understand that....
NARUTO IS ALREADY A PERFECT SAGE.
J-Man needed Ma and Pa to gather the natural chakra for him, so he could go sage mode. He was unable to gather the nature chakra himself outside of using the oil by himself where they (Frog sages) lived. So, when he needed to go sage mode in a battle, he needed them to gather the chakra. Naruto (through clones) already accomplishes this, and he is able to do it "perfectly" giving him no physical imperfections when he goes Sage Mode.
In other words, having Ma and Pa will not help him get to a "higher" level of Sage Mode, he already reached the highest "perfection". And I'm pretty sure he'll be able to combine all those "Modes" and get the PLUS EYES (+) from Kuubi + Sage Mode.
-gHost Senju