Unlike the expressionists, I have never been interested in renewing the world through the vehicle of art.
If history, philosophy and so on vanish from academic life, what they leave in their wake may be a technical training facility or corporate research institute. But it will not be a university in the classical sense of the term, and it would be deceptive to call it one.
If it takes you 20 or 25 years to establish yourself in one field, you really ought to be careful not to stray too far.