Naruto Nara could help rebuild the Land of Fire's Shinobi Temple.  If his style is Shaolin Kung Fu he may be better off training at temple.  Also he could use his resources to do it.  But he should not do it the way it was, he should rebuild it stronger.

Another thing is perhaps there are other monks, who would want to build a temple.  Perhaps the Land of Fire monks could work together with them.  Perhaps sharing the same school.  

Also the Sparrow clan could train there.  They don't have a school, so this could be their clan school.  What the minor clans have Bushi, courtiers, shugado, but they do not have any monks.  In the Phoenix and Dragon clans, monks gather intelligence for the clan.

Another thing is that Leaf Village Shinobi could go on retreats at the Temple, in this way the Leaf Village Shinobi could learn Naruto Nara's Sage jutsu.  While they are they're they could train with the monks.  Also shinobi academy students could go on Training missions to the temple.  With the Temple monks acting as bandits.  This would free up, Shinobi from training academy students.

Perhaps Sakura could be Lady Tsunade's, and Naruto Nara's child's Godmother.  Sakura may someday surpass Lady Tsunade.  Also if Lady Tsunade was killed then her children would have someone to work with them.  Lady Tsunade has worked alot with Sakura, so this could be the way that Sakura returns the favor to Lady Tsunade.