I think your assesment based on chapter 7 bk is right. But in order to settle the old indybancorp holding company , some amount from the deal will towards the BK settlement. You cannot take part of the bank and give it to new investors before settling the chapter 11. All the assets of old bank gets sold , old stakeholders ( creditors an debtors etc ) gets paid based on priority. But you are right, old investors will not have any stake in the new holding corp or bank .
But old equity olders will have a stake on the money paid to the FDIC as a part of the deal.
Disclaimer: Do not buy or sell based on my recommendation. I am not your financial advisor .My recommendations are based on my intuition, research or both and may be right or wrong.