I tried to buy a new Sea & Sea TTL YS Converter/C (Product No.50118), but I heard from almost resellers that it was discontinued. After expend some time googling I found another in some online stores with different name:
Sea & Sea TTL Converter III for Canon (Product No.50114)
Based on the name, it looks like a new version, but the part# shows different, don't know if it makes sense.
Does anyone knows if this version III will do the same job as than the discontinued version ?