Myetherwallet does show the pre ICO coins that I transferred there. Do I just leave them there?
Every Ethereum based token that has been sent to the wallet addres, is shown (You can add the coin if that's not listed)
I intend to hold the coins for years and hopefully liquidate when the price is higher. Once the exchanges list this coin I guess I will be able to transfer them easily out of MEW and sell them?
Thanks
BKN
Yes, you can Send them easily to every address you want.
Also what similar "wallets" do you guys use for coins that are not supported by Ethereum (based on ETH blockchain-not sure how to say this)?
Use myetherwallet for ethereum tokens and Waveswallet for waves tokens.
For other coins, The best you can do is visit their website and see what they recommend. Sometimes you need to download a wallet to store your coins safely.