Unless Jesus died on a cross on multiple other planets or didn’t much care for those on other planets, or had a different plane of salvation for them, I doubt ET will ever be found. IMHO (just sayin’)
Maybe intelligent life could be found that simply lives, dies and that’s the end. God can do as he chooses. This should have no impact but it will.
or consider that life elsewhere may not have fallen as we did. CS Lewis wrote some very interesting Sci-fi on that subject