Quoting from the 22nd April 2015 report, a total of about 1.3 billion yen (over 10 million dollars) is owed by Karpeles to MtGox depositors.
I wasn't sure about the amount. It was 10M then. The critical question is then "Will he give them back?"

Since Kobayashi opened bankruptcy proceedings of Tibanne, he will be forced to give a % back (how much % is the question), quoting:
While I have continually and strongly claimed against TIBANNE Co., Ltd.
(TIBANNE), which is the parent company of MtGox Co., Ltd. (MtGox), for
repayment of the loan receivables that MtGox has against TIBANNE, repayment from
TIBANNE has not yet been made. Accordingly, on January 29, 2015, I applied for
commencement of the bankruptcy proceeding for TIBANNE, as a creditor thereof, with
permission from the Tokyo District Court. In response, on January 30, 2015, the
Tokyo District Court issued an order of commencement of the bankruptcy proceeding
for TIBANNE.
I, as the Bankruptcy Trustee of MtGox, will continue to make efforts to take
necessary measures with respect to collection of receivables due from affiliated
companies, etc.