After reading this chapter I have notice something. When Jugo forced out those 6 Zetsus only 5 were used.
4 Zetsu - For the Hokage vessels
1 Zetsu - For Orochimaru's new body
That leaves only 1 more Zutsu (the one Jugo is holding down). Several chapters back Madara said he used Hashirama's cells/DNA to prolong his life, then he awakened the Rinnegan.
Now if Sasuke used the last Zetsu he could possibly get the Rinnegan this way.
4 Zetsu - For the Hokage vessels
1 Zetsu - For Orochimaru's new body
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That leaves only 1 more Zutsu (the one Jugo is holding down). Several chapters back Madara said he used Hashirama's cells/DNA to prolong his life, then he awakened the Rinnegan.
Now if Sasuke used the last Zetsu he could possibly get the Rinnegan this way.