I guess the snapshot at December 25 (more precisely: block 1630000) is also the IGNIS snapshot (= the moment when your NXT are counted and you get 0,5 IGNIS for every NXT). Is that true?
That is a little bit unclear in the timeline on Jelurida's page, people were wondering about that in the German BCT forum. Maybe Jelurida should clarify that point a bit more.
Yes, that's true, snapshot will be for both, ARDR and NXT.
To receive Ignis we should hold next, right? Or if we are holding ARDR we would receive IGNIS as well?