Just received a CS CC update to Photoshop/ACR that will directly open and process the E-M5II HR ORF files. Looks very good so far with sharp 64 MP output!
Quick sample output. HR ORF processed through ACR in CS CC 2014 to 64 MP file and exported to Flickr at 50% of full size. This was one of the source ORF files processed for focus stack in an earlier post today.