See tircksie's post above, I agree with her. Sasuke has never mentioned, let alone wanted, an heir.
What she said about that point was:
Sasuke has never expressed anything about continuing or resurrecting his clan since early on (Which was the team introduction bit). Somewhere in the middle, I think that motivation morphed into returning honor, or cleansing his clan name. (So it was less literal and more figurative.)
So even she feel that at one point it may have been about restoring his clan by having heir.
That's not what he meant when he said he was going to restore his clan when they all introduced themselves. If you remember, he prefaced that by saying "I want to kill a certain someone and restore my clan". Restoring his clan was never about restoring the Uchiha to the population they once were. It was all about Itachi. Itachi disgraced and dishonored the clan with his actions, and by killing him, he could set things right. That was proven when Sasuke met Itachi for the first time when Naruto went with Jiraiya to search for Tsunade. It wasn't about restoring the clan's population, it was about restoring the clan's name and honor. That's partially what fueled Sasuke to turn against the leaf following Obito telling him the truth with Itachi.
It was never about having an heir. He's never wanted one. Which circles back to Sasuke not using Sakura because he quite literally wants nothing to do with her, and he gets nothing out of their relationship.
And my post about that was:
The only time he has ever mention it was in that team introduction thing but even then it was more. "Yeah at some point I should restore my clan by having some kids." But the more important point was the deep rage and anger of wanting to kill his brother which was what even Sakura focused on.
In other words having offspring is a duty to him he has to fulfill at some point, but revenge is his true goal in life, his passion, his reason for living, and so on.
Nothing he has shown shows that he consider producing Salad with Sakura as anything more then a duty he had to complete. After that he got better thing to do.
So Sasuke always had revenge over having any offspring to restore his clan. But I agree with you also I do believe restoring their honor was apart of it as well. Which he would originally do by killing Itachi. So to be clear; restoring the clan physically by having some offspring, and restoring the clan honor by killing Itachi. The thing is that by the end of part one Sasuke stop caring about a life beyond his revenge. So the only thing he care about was avenging his clan and restoring its honor by killing Itachi. Instead of physically restoring them by continuing his line. Since why would he be thinking about having kids when he was willing to give up his life either to Orochimaru or in battle in order to kill Itachi?
After the ending however. Well, he needs to produce a girl so Bolt can kitten her for pairing shippers to stick around. Its not Sasuke/Sakura that using her/him it is Kishimoto, his staff, SP, and Shueisha that are using them. They believe SasukeXKarin was not as popular as SasukeXSakura and since the ending was going off of what they thought was the popular pairings. This led to suddenly Sasuke need to preform his duty and produce a child and Sakura had to be eternally devoted to him. Their characters and their arcs were abandon for Bolt and money.
Edited by Bail o' Lies, 10 October 2016 - 05:45 PM.