Currently 10 in service with 4 more firm orders to be delivered. As far as I know, the others (12?) still remain as options.
195 bases currently EXT, SOU, BHX, BHD, MAN, JER, ABZ and INV. Don't believe current fleet plans will include a/c being based at any other location, as the propsed a/c for GCI has been located elsewhere due to GCI currently being unsuitable for 195 ops.