FuManChu, are you serious? You seriously need to check
and see how much threat China faces from America. Or go watch Lou Dobb on CNN and see who is America's number one enemy. South Korea, Japan, Singapore and Australia and anyone in Rimpac can expect America to protect them. There is a segment of America that believes China and America will eventually fight against each other (whether it's over natural resources or other things). We can safely say that America would not be jumping on the chance to help China if one of the navies in the sea lane to Middle East decides to block China. Therefore, we come to the most important fleet of all -> South Sea Fleet.
As previously discussed, SSF already has the most advanced equipments of the 3 fleets. It has 4 major ports instead of 3 in the other 2 fleets. It has 4 of the 7 large replenishment ships. It has 2 093s and possibly 094 once it joins service. It also has a number of SSKs and 052B/Cs. Generally, SSF can be broken down to two teams: one in charge of coastal defense consisting of the Ludas, Jianghus and Mings, the other one which is more power projecting consisting of 052B/Cs, 093, 051B, Jiangwei. So, in my mind, these are the tasks SSF needs to be prepared for.
1) be able to send a fleet against any of the AEAN countries along the sea lane and defeat the naval/aerial threat of any one country against energy shipment and shipments of raw material from Africa.
2) one of the navies in this route is India. Now, I don't expect this fleet to defeat IN at its backyard, but I do expect the carrier group sent from SSF to defeat any one or more carrier groups that can be deployed by IN in open waters (so this would affectively take land based aircraft out of the equation).
Of course, the other big threat is USN. But I'm disregarding USN, because it is simply too unrealistic to think that PLAN even in the more distance future can survive the assault of USN carrier groups in open water. So, I propose that SSF must be able to deploy fleet capable of defeating the navies of Malaysia, Indonesia and Singapore. At the same time, it has to be stronger on its own than the entire Indian navy. If there is ever a shoot war near India, I'd expect Pakistani assets to come into play, but that is out of the realm of discussion.
So, it's clear that SSF needs imo 2 carriers, so it will be able to deploy a carrier group most of the times. And that most of the advanced attack subs and ballistic subs should go to this fleet. In addition, it will probably need multiple attack helo carriers carrying ASW helicopters. Since most of the current PLAN destroyers/frigate emphasize more of AAW and ASuW than ASW, most of the ASW tasks would be burdened on the attack subs and ASW helicopters. It probably needs around 2+ LPDs and 2+LHDs in addition to the 2 carriers. If we assume that 2 attack subs and 1 ballistic sub is needed per carrier group, then it will need 4+ SSNs and 2+ SSBNs. Finally, it will need a combination of 052 series and 054 series as escorts.
Anyway, that's just my really quickly thought out expectations.