Compagnie des Alpes (CDA)
2016 - Discobelix - (1/11/16) Parc Asterix has posted a few video teaser about the park's new 2016 attraction, Discobelix. It's all in French of course, but they show off fantastic looking visuals of the theme for the ride, which appears to have a theme around Obelix participating in the Greek Olympics, with some beautiful looking architecture surrounding the ride system and queue.
(7/31/15) Parc Asterix
has put up a teaser sign for a new attraction on the way for 2016 called Discobelix, which I can only assume will be a Zamperla Disk'O Coaster. I'm also heard a rumor that the park might also install a Zamperla Windshear ride (sort of like a Top Spin) with an Egyption theme.
2017 - Pegasus / New Coaster - Rumor - (1/8/16) Parc Asterix is said to be planning a new unknown coaster for the 2017 season. According to the English translation of this post, the new coaster may be called Pegasus and could be a launched Gerstlauer family coaster, similar in nature to Fire Chaser Express at Dollywood.