I am in similar situation and am ready to upgrade. I have digitized all my CD/SACDs to FLAC or DSF files and ready to move from the Oppo UDP-205 to a dedicated DAC. I think I will most likely sell the Oppo, if I move to a new DAC.
Unfortunately I do not see any mainstream companies releasing DACs based on the new AKM chips. Sick and tired of seeing the ESS based DACs - with the knowledge that these chips internally convert DSD to PCM. The only DAC that is on top of the list is the T+A DAC200 or a Marantz SA-10. Both of these have their proprietary DSD implementation.