I don't know if this bit of info was mentioned on here yet but according to this article, the Ben 10 reboot would air on April 2017.
http://www.iol.co.za/tonight/tv-radio/this-isnt-your-moms-ben-10-2067184
The article also mentions the concept of having the characters grow up with the audience. What I'm going to focus on is mostly in regards to the first paragraph, which I will quote here. The overall concept and argument that the article covers is something to take note of as well though.
From the article:
When you grow up watching a cartoon series, there comes a time when you quit the show because it just doesn’t make sense anymore. We have to grow up and when that happens, it becomes apparent that The Smurfs isn’t that cute anymore. Men can still wear Voltron T-shirts, but that’s just clinging to the beautiful yet distant memory of a past that’s long gone.
To me, at least, the article makes the argument that once you have grown up, cartoon shows are just not good anymore because you've grown up now. Or at least that's the argument that I interpreted them making. That's not true at all here. I still enjoyed watching Ed Edd n Eddy, Courage the Cowardly Dog, Kids Next Door, Chowder, and even the more recent Regular Show. Even though I haven't seen much of Regular Show, I still saw plenty enough to have a good sense of how the show is like and I found enjoyment in it. Like I even said before, despite the numerous problems with Ben 10 Omniverse, there were some moments that were pretty good. The reasons for liking these shows aren't that of nostalgia and I didn't stop watching certain shows because I grew out of them and the same goes for most others as well. I like these shows because they were well made shows that were, and still are, great and fun to watch. I stop watching other shows because they're terrible, or have become terrible, shows or they just don't interest me. Steven Universe is a good show but I don't watch it because I'm just not interested in it. I've seen some episodes of the PPG reboot but I don't watch it anymore because it's a terrible show. Not because I didn't grow up with it. Again, this is the case that goes with most other people, if not everyone.
I do appreciate Ben 10 going the direction of having the characters grow up with the viewers but that's not the real reason as to why people keep watching the show or stop watching the show. Some people keep watching Ben 10 because they still enjoy watching it and still think that the series is still of good quality; not because the characters were of the same age as the viewers. Some people stopped watching Ben 10 because the quality of the series diminished and each entry into the series got worse and worse; not because people grew out of the show.
Even then, another thing to take note of is that the concept of having the characters grow up with the fans and viewers didn't actually stick around for long with Ben 10. Cartoon Network really only stuck with this concept till the end of Alien Force. After that, Ben has remained as a teenager till Omniverse and now instead of going back to that very concept and focus on the characters now being adults, Cartoon Network went back to making Ben a kid again when instead they could've made a Ben 10,000/Ken 10 show with Ben now as an adult and his son Ken being a kid.
Again, this was just something that I wanted to point out and counter-argue on. This video also helps to further explain my argument as well. Overall though, again, viewers don't watch shows because the characters grow up with them and viewers don't stop watching shows because they've out grown them. The real reason that viewers watch cartoon shows is because they're of good or better quality while viewers stop watching other shows because the quality of those other shows had diminished and went down. I've heard that some of the more recent shows such as Steven Universe and Adventure Time are actually more popular with teens and adults than with kids. Those shows don't have the characters grow up and age (at least as far as I could tell since that I don't watch those shows) and many, if not most, of the viewers that watch those shows are older and didn't grow up with them. Again, characters growing up with the viewers is not the real reason why many viewers still watch those very shows. It's because those shows have really good quality to them.
https://www.youtube.com/watch?v=38r9WSqkLzk
As I stated before, according to the article, the Ben 10 reboot will air on April 2017. I don't know or remember if that was mentioned on here before so just in case it hasn't, there's some little new bits of info here. That's my stance and opinion that I have with the topic that this article covers as well.