http://www.wiesenthal.com/site/apps/nlnet/content2.aspx?c=lsKWLbPJLnF&b=4441467&ct=13221517. That nomination first comes up on Wednesday immediately after the public comment session: http://regents.universityofcalifornia.edu/regmeet/jul13/sreport.pdf. Following that session, the Committee on Finance will be considering a bump up in pension contributions which might also be a subject of public comment on Wednesday: http://regents.universityofcalifornia.edu/regmeet/jul13/f5.pdf. It will also consider increases in tuition of certain nursing/medical programs: http://regents.universityofcalifornia.edu/regmeet/jul13/f3.pdf. Either or both of those items could be a subject of public comment.
Official action on the new UC prez does not happen until Thursday: http://regents.universityofcalifornia.edu/regmeet/july18.html. But nothing prevents someone bringing it up in the Wednesday public comment session.
Note finally that at public comment sessions the Regents don't respond to comments made or otherwise discuss the issues raised.