Delshoes will probably retire after the Olympics. But still remaining:
Pechalat/Bourzat - will be 26/29 at Vancouver. They will likely continue on until they win a world medal, but it's unlikely they'll continue to Sochi when they will be 30/33.
Carron/Jones - 23/21 in August - a new matchup after the Carron/Jost split.
Matthieu Jost turns 29 in January and is reportedly trying a new partnership with a Russian skater, which may or may not work out.
Blanc/Bouquet - 21/22
France has only two spots for the Olympics and Worlds 2010, and three spots for Euros 2010. Findlay/Richaud have no chance at an Olympics spot, as those will go to DelShoes and P/B. If Carron/Jones have some good French and International results, they will likely be the second team for Worlds.
Although Findlay/Richaud did get the Euros 2009 spot, their direct rivals Blanc/Bouquet got the Worlds 2009 spot. So these two teams will be ongoing head-to-head rivals.