if you get a chance, the latest episode by Shilao is really good
Talked quite a bit about the entire Chinese submarine program.
Said that the original 093 looked like 091, because there was layoff in time between 405 and first 093. They had to rehire workers at Boahi shipyard, which really took a toll on the program. So, 093 was conservative I guess.
Talked about G-I-UK gap vs first island chain. Explained the big difference since once you get past first island chain, you have the entire Pacific Ocean in front of you (something I mentioned for a while) and when equipped with 093B with YJ-18B (ayi specially said 2000 km strike radius). So, it's actually very hard to hunt that down in the middle of Pacific Ocean.
Mentioned the importance of 093A in 094 getting out of first island chain. Said it is filled with sensors everywhere, so that once you get to the area with all the American sensors and possible submarine near bye. 093A with it's low towed array sonar and other sonar can cue up all the MPAs to hunt down USN submarines, which allow 094 to get out.
Then, they mentioned that 093B is built at same rate as 055 program. When it comes to VLS, they didn't directly say how many it has, but mentioned that adding extra length to accommodate more is no problem. So if PLAN decide on 12-cell VLS, it's more because they think that's all they need or can reasonably fire off before scooting away. Let's say they get to maybe 1500 km from Hawaii, fire all the missiles in a couple of minutes and they quickly scoot away before USN start chasing them down. Once you get to PD to fire the YJ-18Bs, it becomes pretty obvious where you are.
I think they also confirmed it uses pumpjet propulsion, although maybe I heard it wrong.