Most large scale kits made today are based on vintage tooling, with some exceptions, and even then they get them wrong!
With some slight updates here and there, wheels and decals mostly, they will be the same technology that was available at the time the molds where made.
The aftermarket has come to the rescue to try and help us out to try and build cars that are more unique to a look or taste. The quality ranges from super nice to really poor, but, one must remember that most of these vendors are doing it on the side and not as a full time job and in most instances, they are the only game in town!
With the advent of 3-D printing this might change and I hope some of them will be able to produce more wanted and hard to get items so that we may fix all the factory kits we have. And of course this will come at a price, as large scale is a rather niche market now that is mostly populated by guys like me, in our 40's. It is rare to see "Kids" even try to tackle something like this and I do not really expect them to considering how small the selection is in large scale kits.
Yes, I would have rather had a brand new Dragster or Funny Car in 1/16th than the large new Mustang they did, They would have sold way more of them to us niche guys.
Is there a future for it, yes, but it is shrinking