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here is a list of what you already can deposit as of today

  • AGRS
  • AMP
  • BKS
  • BTC
  • DAO
  • DASH
  • DGD
  • DOGE
  • EMC
  • ETH
  • EURT
  • LISK
  • LTC
  • MAID
  • MKR
  • MUSE
  • NBT
  • NSR
  • OMNI
  • PPC
  • SBD
  • STEEM
  • USDT

Yes, via Openledger (open.xxx assets), thx to Blocktrades.
They support many popular coins.