I believe that a comeback requires new fans because it is the teens and young adults that are buying the CDs and concert tickets. I may purchase six CDs per year. My kids each buy 30 or 40. They have Rolling Stones and Aerosmith CDs but no INXS.
The Rolling Stones has timeless music that ensures them an endless supply of new fans among the CD buying teens and young adults.
Aerosmith kept writing new songs to keep themselves current and popular with the younger folks.
With one or two exceptions, INXS music is not timeless. They need new material on the radio and "Us" is simply not good enough.
As an aside, I am starting to think that JD and INXS are a fit because they will earn a decent living doing tours in Europe, Asia and smaller North American cities and that is the best that JD could hope for. Suzie, Marty, Jordis and Mig will do better without INXS.