When identifying any group of potential future leaders, naturally, it is the conventional organisational and commercial needs that dominate, as do the particular sector or functional requirements of the role. Given that most of us would accept we are experiencing a period of very rapid and accelerating change, many also track parallel social and employment practice changes.
There are many reviews of generational similarities and differences focussed on distilling broad trends, in broad numbers, across broad age-ranges. Here is one such example