616 aside, which they have kind of done, do any of those really hold the box office potential? One of the major problems here is these films, if you are going to do them right, aren't cheap. Heck, $160m doesn't even get you that much mileage in this day and age on these types of films. Just look at some of the reaction to "hidden Godzilla".
Maybe I am wrong, but I don't feel like Sony is in the position to make "small gains", which is what those could produce at their very best imo. If Spidey proper is losing steam at the box office, what hope is there really for 2099 or Noir to turn it around?