Both philosophy and theology are dogs on a walk. It looks like they are in the lead, but any major direction changes are directed by culture. When we have new ideas, new experiences, major events, that changes the direction of thought in general and philosophy and theology are directed by these cultural markers.
So what questions might philosophy deal with in the next 50 years, given the state of things now. I suggest that philosophy will be answering these sets of questions because of the direction society is heading in.
One of the areas that is changing everything is the internet. It isn't just computers, rather the internet is changing how we relate to each other and how we understand relationships.
What is relationship? Does relationship demand physical interaction? What is community? Can community be something different than being in physical proximity?
Is the lack of physical really spiritual? Is, then, the internet spiritual connection? What is missing in relationship that does not have a physical connection? Can a relationship be complete if you can see and hear and understand the person without ever touching them? Do we obtain information about others outside of sight and hearing? Is that information important?
What is "friendship"? What different levels of friendship is there? Can we be socially and mentally healthy when we have deeper connections with people whom we've never seen than those around us?
If "property" has no physical existence besides a pattern of electrons, can it truly be sold? If intellectual property is spread throughout the internet, can it be owned? What kind of ethical regulations determine property that cannot be held or kept under lock and key?
How does ethics change in an internet environment? Besides property, how does one care for another on the internet? What is the responsibility of one when an idea on the internet turns into a crime in the "real" world?