If you look to right side of your post you will see some threads under "More like this".
They relate to other camera models but the message is the same. When a new model camera comes to the market Adobe requires time to work with raw files from the camera to create their profiles.
So there will be a wait, hopefully not to long. In the meantime you can use Olympus Viewer to process the files.
There is currently a plugin for the 40MP High-Resolution RAW images from the OMD E-M5 II. It's early in development but I've been using it with great success! There's a link to download it in the description of this video on YouTube. These High-Res images are incredible quality! I'm loving this. Please note that this plugin only works for images taken in RAW with the High-Res setting, and not the normal RAW images.