A victory by the team seems 'within the realm of possibility'. [=a victory seems possible]
It's not 'beyond the realm of possibility' [=it's not impossible] that he will return.
new discoveries in the 'realm' of medicine
(..) into disembodied energy... ...and cast throughout the cosmos. We thought him gone... ...but it seems he has reconstituted himself in the Antimatter realm... ...bringing the Shadow Demons under his control. We sense this is just the beginning... ...that Krona means to use our sun, (..)2011 Green Lantern: Emerald Knights