(Ignoring the ageist and sexist "old men" statements in this thread because it's irrelevant)
They will die out,
... and be replaced with other technically invested people who are resistant to change. Such as with every massive project ever - at least until you get a tyrant who ignores the feelings and work of of others and is in a position to push through their own vision.
Simple and reliable has a lot to be said for it.