Where there is hope there is life, but you're dreaming, man.
The fact Logitech and Fanatec wheels aren't supported on the PS4 has everything to do with the patent protected Immersion technologies they're sporting.
Until the patents expire by the end of 2015, there's no hope of seeing them supported unless Logitech, Fanatec or Sony are willing to pay for dedicated PS4 licenses. Which none of them seems ready to do.
In the same time, Thrustmaster either have a better deal with Immersion, or they are willing to pay for these licenses. That's why the T100 is compatible.
You're probably right, still not buying a Thrustmaster though!