Swissgabe, why would Germanwings want to use Terminal B? As a low cost carrier, they're not keen on spending money for push-outs! Open parking positions is what they're looking for!
Terminal B southern stands (B32, B34, B36 and possibly B38) will probably be converted to open stand for self power taxi in and out (CRJ's, CR7's) while the northern stands (B31, B33, B35, B37) will be used for long term parking for SQ
Terminal B is already fully booked in this respect...