While you're on the subject of transaction fees can I ask if you have any plans to support withdrawals to bech32 BTC addresses as implemented in Electrum version 3?
BIP173 base32/bech32 is still very new and not commonly used yet, AFAIK the only wallet currently able to send Coins to base32/bech32 addresses is Electrum itself.
If base32/bech32 happens to become the standard for segwit addresses (which imo is likely, opposing to current p2sh), or even just becomes commonly used besides p2sh,
it's going to be integrated and you'll be able to withdraw to a base32/bech32 address.
As to when this option will be available, I can't really make a prediction yet.