Switching from FHEM to openHAB 2 - What to expect?

I am not sure if we are talking about the same issue. My first question before moving to OH2 is whether it supports my EnOcean devices, namely

  • EnOcean Pi 868 GPIO module gateway
  • Eltako FT55-rw switch
  • Hoppe SecuSignalFHFS-vw window handle

The Wiki doesn’t mention any of these devices. Does that automatically imply that they are not supported? I am wondering whether there exists some kind of list for all sorted EnOcean devices?

I also found a post that implies that support for EnOcean within OH2 is limited (EnOcean bindings : Opencean or Aleoncean?). Which binding is the correct one to choose if I start with OH2?