Poloniex will be awesome, i still think bittrex would be amazing also. Have you submitted a request to bittrex yet Dev?
If anyone would write what info to is needed for adding a coin.
IMHO
we need more realistic, cryptopia for start is a very good. and we already have a few trade there.
if we need more exchange, our aim is yobit,c-cex,nova, coinexchange
after a good development, we may to aim bittrex, this is hard because high fee and developer verification
and after months or years, of course we have very good development, we may to start talking adding XLR to poloniex