I really doubt whether the exchanges will agree to lower the fees, even if the minimum fee needed for confirmation goes down. Exchanges such as Bitstamp and Coinbase have profited a lot from the increased fee (they are keeping 25% to 50% of the withdrawal fee to themselves). They have no reason to lower the fee as of now.
25% to 50% withdrawal fee is to high and this is the way of those exchange site to make profit for themselves because you cannot withdraw your bitcoin in instant due to this fee and you are loose already, you should trade your bitcoin and alt-coin then to recover the fees.
Yes that's true! that's why you should trade your bitcoin and altcoin to increase your earning or you invest it for a long term.
Not for increase long term gains, but for escape the high fees that are being charged for Bitcoin withdraws.
For example, Bitcoin transfers costs 0.0015($3.9) on BTC-e but Litecoin transfers only 0.001 LTC, or around $0.05 at current price.