I'm definitely excited for more Gintama, but I've got to wonder, what's going to happen to Sket Dance (which is in that timeslot right now)? Maybe it'll do what Gintama has been doing and take some time off and they'll just rotate. Though, I don't think Sket Dance is in any danger of catching up with the manga. It's also worth noting that Sket Dance has recently been ranking about the same or slightly better than Gintama in Weekly Shonen Jump. It'll be really interesting to see how they handle this.