The sad issue here is that the chips are obsoleted on a regular basis, if there are newer versions, they either aren't pin compatible or have different supply voltages, so require extensive modifications. The availability of chips for home goods is at most 5 years often much less, there is an almost insatiable desire to reduce the cost year on year of equipment. Basically this years model is a cost reduced version of last years. There are companies who specialise in stocking obsolete chips, but as the years go by the cost of them tends to go up. So its down to someone getting a good stock of suitable parts. Its why getting old transistor based equipment repaired is easier, suitable devices are available quite readily. I am thinking of buying a 2nd Oppo 203 to keep as a spare!
If the situation in the UK is like it is here in the US you better make a decision on an extra 203 pretty soon....they are becoming hard to find and more expensive every day..on a positive note...if you buy the extra 203 now...the worst that could happen is that you are making a good investment...in case you don't need it..