I agree, and just some thoughts.
Tsunade Naruto's lineage:
I would think she may have some sadness for the fourth, but the others are so much more important to her that Minato isn't really a consideration. If anything, I'd think she'd feel more strongly about Kushina than Minato. Jiraiya felt strongly about Minato and Naruto. Recall Jiraiya and Tsunade talking about them and Naruto before he leaves to fight Pein (see link).
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(The conversation starts here, the whole one.)
Based on this, I think she knows more about Naruto's mother than she does Minato, though I think she knows a great deal about both. After these action chapters, I have a feeling Naruto will learn a lot. There will be some talking while Konoha rebuilds. I don't think that they'll be sending ninja out, since protecting Konoha is a priority. They can't help but appear weak since they were nuked. At the same time, if Naruto defeats Pein, who the hell wants to go to Konoha and be killed. Not forgetting Danzou, there might be a few chapters on this first. Yamato and Sai are in position, and it's not like Naruto is going to sit around.
Naruto's lineage:
This might all take place at Kakashi's bedside, or split between there and the Hokage's office. Kakashi has nothing to do while in bed, so I wouldn't be surprised if he's instructed or feels it's now appropriate to tell Naruto.
In addition there have to be artifacts for Naruto. An example would be the first book Jiraiya wrote that Fukasaku gave him.
I wonder if the elders are going to try to prevent Naruto from learning about his lineage. Personally I'm sick of them. I wouldn't mind if Sasuke had a layover and killed them, then left to deal with other matters.
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On a separate note, I wonder if Sakura can summon slugs. I presume she learned over the time-skip.