I mean, yeah there likely are lifeforms superior to humans in some sense in the vast cosmic reaches of space. But... that isn't a God, really.
God is, by definition, a "the creator and ruler of the universe and source of all moral authority; the supreme being". Just because there's beings superior to humans does not mean they're automatically Gods, because being better than us isn't the same as creating moral high-grounds, creating the universe, establishing the laws of nature, etc.
Now you could use a much more loose definition that a God is a spirit that commands some force of nature, or is something beyond human measure. But that's so vague that anything and everything humans can't explain yet would be referred to as a "God". So unless we wanna start worshipping black holes, this definition isn't gonna work either. We're left drawing arbitrary lines between what can pass as a God and what can't. We're left with scales measuring random metrics. We're left trying to classify stuff when humans were never really good at that anyways.
And then there's also accounting that there is prolly more than one superior being, so to worship them would be polytheistic, so Christianity, Islam and Judaism all become irrelevant.