How do you know this is not a fraud? The process is very obscure. No headquarters. No team. (At least not at the site). No proof of developed platform. The founder says they don't use Bitshares platform but partner with them ... for what reason. An as you mention $1 billion is way too much. And there is no (verifiable) info how much they collected so far.
RE: AriseBank is Aiming to Decentralize Banking - With Help from Bitshares