I think the wts will still be around after we are all long gone. It will be different, but it will still be here.
Why are there comments that indicate the printing levels are going down? The circulation of both magazines is higher than ever and rapidly increasing each year. During 2014 there were 1.4 billion copies printed.
There are between 80-100 million or more books and bibles being printed each year along with an increasing number of tracts and brochures.
The society will keep changing, but it will not be disappearing during my lifetime.