Read on Twitter
The exact nature of development pathways for #PLAN SSN #submarine design remains uncertain. This picture is a good illustration re the various suggested types, though a very good (if older) report alternatively assumes three variants, see here:
http://www.admiraltytrilogy.com/pdf/Type_093B.pdf https://twitter.com/lqy99021608/status/1265277451585777673
http://www.admiraltytrilogy.com/pdf/Type_093B.pdf https://twitter.com/lqy99021608/status/1265277451585777673
FWIW it seems most probable to me there are four variants, the original 093, straight sail, no TAS, the 093A (smooth sail root, no TAS), an 093B with a notable hump, potentially used with a dry deck shelter & TAS + sail mod, and the final 093B with minor bumb,TAS sail mod. 
Still among the more interesting shots of 093 is this one with aforementioned DDS. From imagery it seems unclear what sub-type we see. Pics via SDF "Tam".
And the 093 with pronounced hump vs very slight smooth hump.
Lastly photos corresponding to OP scheme.
