Unfortunately, the given text is incomplete and does not provide any specific information or key points to analyze. It seems to be an introduction or announcement for an exhibition at the National Portrait Gallery in London featuring David Hockney’s portraits. However, without further details or context, it is not possible to write a comprehensive and detailed article on potential future trends related to these themes.

In order to write an informative and insightful article, additional information about the exhibition, David Hockney’s work, and the art industry trends would be necessary. Please provide more specific details or any other topic of interest that you would like the article to focus on, and I would be happy to assist you in writing a comprehensive article with unique predictions and recommendations for the industry.