I'm thinking Yachiru will step in only long enough if at all to give Zaraki a moment to recover. I think Zarakis biggest flaw and weakness is his arrogance. Because of his power over the years and being unchallenged in that power I think he got comfortable lazy. I think he just underestimated Noi.
Remember the look on his face when Noi went full release? And Nois al "Surprised? This is your first time seeing a full release?" Or something to that effect. I believe the Espada can hide just how powerful they are right up until release.
I think Zaraki's is gonna lose it now over that deception and when he is done one will be hard pressed to find an entire pound of Nois flesh left.

And he'll do it with his Zanpakutou's help... bu the still won't realize it.
Sorry for the ooky pic guys... but it's the only one I could find at the time. Here is a couple more... hopefully a bit better.


Still small but a little more clear. Dif page tho.