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
(..) But for that, we will need to access at least % of our brains' capacity. And after control of ourselves and others, come control of matter. But now we're entering the realm of science fiction. And we don't know anything more than a dog who watches the moon. - Excuse me, sir. - Yes. (..)2014 Lucy