hmm... I'm now aware of huge transaction load on ethereum network. My tx is pending for this reason. But, I use Shapeshift exchange, a third party exchanger. If ETH returned to its original source then I'll get nothing. Because. my BTC which I have sent through Shapeshift must not be returned to me.

But, yes, if it'll be broadcasted over ethereum network then everything will be fine.

Thank you :)