As the world become more technical, the Brotherhood will effectively become poorer and poorer, due to low skilled jobs being automated or the minimum education standard for jobs being raised. Thus the whole issue of generating operating capital, will get harder and harder as time goes on. Young people in particular (the next generation of Witnesses) are just not as financial today as in past generations, with more and more being forced to live with their parents longer because they are unable to care for their own expenses.
So what are the options?
As we have discussed many times here, moving into the digital publishing fully, is a given. The Governing Body could also decide to cut back (or quietly cancel) its mega movie projects and any more new building projects. But I'm sure will not be enough.
They could introduce a two tier JW. site. One with a very basic level of free content (like perhaps the daily text, the month's CLAM workbook and WT study articles) ... and a premium account, like any other worldly streaming service. And when you think about it, who would not pay to see "A day behind the scenes with Geoffrey Jackson" or "Cooking with Kenneth Cook". Really, the potential is endless.
Of course, the Governing Body will never use the word tithe, but I'm sure that in the end, there are more emotional ways to get a similar result.