Keep Circulating the Tapes: The show's only physical releases are in France and Australia, unless you were one of the lucky people to Kickstart $45+ to the original English Dub; in that case, you got a region free Blu-Ray with all the episodes (in both French and English, spanning 7 discs) before season 3 happened. Only a little over 3500 copies were made. These show up on Ebay once in a blue moon.
Production Posse: Ankama's French-language dub of Tengen Toppa Gurren Lagann shares most of Wakfu's voice cast. Yoko and Evangelyne share Geneviève Doang, and Cédric Dumond (the obnoxious announcer during the "Gobbowl Hell" arc) is also Kamina. Other notable ones are Nia/Amalia, Kittan/Nox, Viral/Xav, and Tymilph/Rubilax.
Screwed by the Network: The series has been aired somewhat erratically on the French television network, France 3, including more rediffusion than usual, changing time slots, and gaps of several months between new episodes (the last one being a two-and-a-half-month pause before the final three episodes). Viewers were not happy.
Also, Ankama was ready to make a 3rd season, but France 3 declined because they where wanting a more children oriented show. Because of that, it's only in 2015 that season have been anounced for Netflix, with a channel hop to France 4.
The English dub had it's cast completely replaced for Season 3 due to Netflix funding the dub and recording it in America, instead of the U.K. where it was originally recorded.
The same happened in Latin America, as the dub went from Argentina to Mexico for similar reasons.
What Could Have Been: The artbook "Dofus - Les mains d'Eniripsa" presents the plot of an unseen episode, going as far as providing a full summary, character design, and even background design. The episode was about Yugo and friends trying to save a village from complete dryness. For some reason, the episode was scrapped and never produced. The only remaining bit is the title character, a charming Eniripsa called Mey d'Elongrot, who was present in the crowd as a cameo in episode 10.
Word of God: Yes, in season 2 Sadlygrove and Evangelyne are a couple and have a physical relationship. No, no need to fanwank about how and when Grovy had seen Eva naked, as mentioned in season 2 episode 8; it just happened off-screen. Nothing else to see, move along. (You can find the relevant comment by Tot, the series' main writer, in the official Wakfu forum, if you can read French: )