I am thinking maybe red and green are just christmas colours without any real meaning, ie just random gifts of souls, shards, fragments? Tomorrow's gift should provide more of an idea if thats true or not....
Grey though, since today was a talisman set I am hoping there are 2 more talisman sets to come from there.
The giant bag of gifts sure looks like the one that Coalgiver eddie has so makes sense for Coalgiver to be the final gift.
Overall anything free is good and more so when you don't actually have to play to get them, just login. So thanks NF, nice work.