It's a really good idea.
Danse avec les stars could fit her very well.
The Voice started last night on TF1, and I have no regret about it. The show doesn't match with Alizée personality at all. ( beyond the fact that her voice is not her major asset).
Danse avec les stars is really popular here, the schedule is perfect with the album release and she could be really good in it.
She doesn't have to be afraid , in my opinion, cause the best dancers had already did the show ( and there's not so much French celeb who can dance
).
It will be a lot of work but I think it worth it.