Agreed Jafant, Rich and Nonoise made cogent points. I think the likely outcome is with cd sales declining, some manufacturers may go down the server route rather than tooling up to build their own transport and just see what happens in future. The larger players with more corporate funds may well build a proprietary transport mechanism or negotiate an OEM contract with someone like Esoteric. Of course doing so means designing around the new transport from scratch.
It is likely Phillips won't relinquish the patent for their Pro 2 transport, but unless cd sales increase which seems unlikely, Phillips for one are out of the transport-building business.
However as Rich eluded to, their are other transport options such as using a cd/dvd rom drive as used by Cary, Oppo/MSB etc. Boulder are doing something similar and use a very accurate cd/dvd rom drive sourced from the Supercomputer industry. Their 1021 network player is ideally placed for the future with a readily available/replaceable transport mechanism and the capability to stream over ethernet.
It will be interesting to see if shiny discs have a revival one day like vinyl!