Features planned for 0.4.4.6+

• Deterministic wallets, i.e. keychains generation from seed (user supplied or automatically generated, see Electrum for example);
• Separated databases for keys and transactions, instead of wallet.dat; (Questionable)
• Add support for free transactions and decrease the price for 1kb (i.e. bitcoin-like fees scheme);
• Remove lower output value limit for user and coinstake transaction types;
• Add maxtxfee configuration option and RPC call;
• Include PoW block txfees into the PoW block reward (like bitcoin does, to make transactions handling more profitable in comparison with empty PoW block generation). (Questionable)