Oooh, Matron!

I've talked more than once in these pages about books and films from the past having to be treated as things of their time, and not judged on the basis of current morality and prejudices.  But how do we deal with modern works which seek to look back to past politically incorrect times?  I ask because it seems moves are afoot to produce two (and maybe more) new Carry On films.  Now the Carry On franchise had its hey-day in the 1960s and 70s and relied heavily (one might say almost exclusively) on innuendo, double-entendre and seaside postcard humour.  Could it be done today? And if it is, will it be acceptable?  They did try back in the 90s with "Carry On Columbus" but that was a flop.  And if the producers go for a more modern, all-inclusive, lets-not-upset-anyone approach, then they won't be true Carry On films, will they?