Yes but these are the ones past players really want? perhaps?
Dread Lords - Biggest bogeyman of them all - Kill'em quick or die quickly.
Peacekeeper Bloody annoying or terrifying - the old version use to kill ALL ships whether they were in space or orbit you had to hide your ships till you could take them out en masse.
Assassination was based on previous event that while on a tour of one of your planets a foreign leader would be killed by a disgruntled worker and diplomatic talks failed and only a war would punish us properly or something of that kind? It got real interesting if both parties had allies the offended race would declare war on you then your allies would declare war on them and then their allies would declare war on your allies as a result a relatively peaceful galaxy could become a bloodbath in a matter of 2 turns....and it was worse if they were your ally to start with?...
The Artifact is similar to a event in GC2 kill'em now or get crushed by them later and the longer you leave it the worse it becomes....As for the Space Monsters that's completely New probably comes from the suggestions made in Beta stages for distant universe type space monsters?
Quite nice,I had to turn mega events off in GC2 as I kept getting the DL's and couldn't find and kill them quickly enough most of the time.Its a DLC you don't have to buy it but the options there if you want to or you change your mind later on? I haven't bought the map editor yet myself but that's due to personal stuff.