Ignis also already listed on CoinmarketCap https://coinmarketcap.com/currencies/ign...
About fork details best avaiable info is on Slack here https://nxtplatform.org/slack/ and here https://ardornxt.slack.com/ (need to request access)
There is absolutely no doubt about NXT that its now absolutely undervalued and will start MOONING very shortly, now its MORE THAN DOUBLED MONEY on 28 Dec
Target for NXT at least 10k Satoshi.
Happy trading and good luck!