I am still waiting for the new PCBs. but most components did arrived. Including the ESP-12E Module. So I made a small paper-PCB test. And it looks good.

Also the possibility to use Rev2 with the ESP-01 module looks good:

On both Images you can also see the new reset switch. It is accessible from the side. So that laser cut acrylic sheets can be used as case. Therefore see also also last log.