So since we're on 20 pages of Nintendo vs Sony and speculation of who and whose mothers would ruin Persona forever...
Is there any merit to these "so-and-so should buy Atlus" talks? Index/Atlus isn't like THQ, all able to sell off developers to cover their debts. Index didn't just buy Atlus, they merged with it; all of Index's debt belongs to Atlus, so if Nintendo/Sony/your mom buys Atlus, they have to do so by paying down all of Index's debts. They'd be stupid to do so, really.
If anyone (Nintendo, Sony, your mom) were to "buy Atlus," they'd likely just be buying parts of Atlus-- an IP here, some office chairs there, some art assets over there. But there's no reason to do that, either. The IPs, on their own, aren't worth the price-- the "Persona" name doesn't sell systems (or even raise eyebrows outside of GAF)-- and Atlus assets aren't exactly, well, groundbreaking. The real value of Atlus games is from the talent behind them, and it would be a lot cheaper just to hire the staff after Atlus goes down with the Index ship. Sony could hire the Persona team to make Bearsona, all without having to "buy Atlus." Nintendo could get "Shin Mario Tensei" and so what if it replaces Jack Frost with Yoshi, it would still be a great game and nobody has to "buy Atlus" to make it.
From the OP, it seems like the creditors know that the non-Atlus parts of Index are worthless, and that they want to restructure Index to basically be just all Atlus, and for Atlus to continue business as usual. For this to happen, they need someone to invest and keep Atlus from having to fire all their staff and sell all their chairs. They're not looking for a buyer, they're looking for an investor.
At least, that's my take on it.