I dunno.. I'm studying on my own philosophy of systems (general systems theory) and I find it incredibly useful for my line of work.
Perhaps philosophy can progress when applied to other fields, like biology, computer science, quantum physics...
You realize all those fields were birthed out of philosophy right? Once something becomes more known, it graduates from philosophy. Some questions look to be staying longer than others but generally I think you'll keep seeing fields be birthed, though over the timeline of centuries.