We have a few reboots in the anime industry right now. Let's start of with the most prominent one:
1. Sailor Moon Crystal- In commemoration of the twentieth anniversary, Toei Animation has created a 24-episode anime that follows the manga (I think) and is broadcasted every two weeks. I don't watch the anime and have never read the manga. It's been years since I've seen Sailor Moon, and I remember nothing to be honest. Reviews of the reboot are rather... bad. I'm not sure why, so don't ask me. Season 2 has already been confirmed btw.
2. Digimon Tri- I'm hype for this guys. Really hype. Digimon is one of my most precious childhood memories. Too bad that it has been postponed, but I'm used to hear that about reboots (seriously, do you guys know how long I've waited for Sailor Moon Crystal news?!)
3. Gintama- An anime produced by Sunrise first in 2006. One of the most unusual animes I've ever seen, and I'm still catching up on it. Gintama ran from 2006-2010, 2011-2012, 2012-2013, and has just started its newest season this month. Guys, Gintama's fanbase seems to be one of the most loyal ones I've ever seen so far. The second movie brought in enough profit to make the newest season possible. That says something. The anime is always coming back, and I hope that it will do that until it covers the entirety of the manga.
4. The Heroic Legends of Arslan- Based on a Japanese novel series in the 80's. It had already gotten a manga as far as I know in the nineties and a few OVAs. Hiromu Arakawa, the mangaka of Fullmetal Alchemist, is currently doing a reboot of this series. In addition to this, a new anime based on Arakawa's manga is on TV right now and seems to be doing very well with the ratings (it's in the top ten every week).
5. Bleach- ... I would like this series to get an anime again. Studio Pierrot better go back to Bleach when they are done with their crap called Boruto- The Movie.
6. Fairy Tail- Kind of late on this, but nice to hear it having gotten back its anime last year.
7. Akatsuki no Yona- Studio Pierrot's best anime from last year. Would love a season 2.
8. Puella Magi Madoka- I don't think a sequel is needed. It's good the way it ended.
9. Attack on Titan- The King of "Milking the Cow" in my eyes.
10. Tokyo Ghoul- The definition of butchering a manga. And it's done by Studio Pierrot I hope for a "Tokyo Ghoul Brotherhood" in the future.