He is working on Mercury Steam's next game: Raiders of the Broken Planet. And it isn't confirmed, but while ago he said to be working on a big IP, so he also may be working on their Metroid.
As composer he also works for cinema in different Spanish movies and shorts. After Castlevania Lords of Shadow 2 he did work in a released movie and 2 shorts:
http://www.imdb.com/name/nm1067800/
http://www.mobygames.com/developer/sheet/view/developerId,66299/
Even if he is very close to the Mercury Steam team, in games he's a freelance who also worked for Ubisoft Barcelona on a GameCube + PS2 game or Rebel Act (defunct company with members who are now in Mercury Steam or Tequila Works).
He is well known and valued by the Spanish gamedev scene, I assume that if other dev teams don't work with him here in Spain it may be because should be really expensive and most teams are small indie devs, and because we have many other great composers here: David Garcia Diaz (Rime), Damián Sanchez (Rise & Shine, Blues & Bullets), Fingerspit (Gods Will Be Watching), Mateo Pascual (Commandos series, Sandstorm: Pirate Wars), Pascual Gallego (Candle), Alberto Oliván (Dead Sincronicity)...
He only worked on Spanish projects, so I assume he already has enough work here or doesn't speak English.