I am not sure now if you can get any more ARDOR as the snapshot was done ages ago but if you are holding NXT now, take it off the exchanges and put it in your NXT wallet as there will be an IGNIS TOKEN snapshot in the 3rd quarter of 2017. All NXT holders will receive IGNIS token which will be the first child chain on the ARDOR platform. For every NXT you own you will earn 0.5 of an IGNIS.. I want to make sure I own some NXT before then as I missed out on owning ARDOR.