Over the years we have received many updates to the factions we love and a few new factions usually favoring the side of the Imperium.  But time and again xenos are left on the back foot.  Now with the (re)introduction of the Zoat to Blackstone Fortress I think it shows a vast potential for a full fledged race of new Xenos to come bursting into the 40k universe.  This new Xenos blood could relight the burning desire of many hobbyist for something truly new.