They'll twist and turn to fit religion around any such discoveries.
They've been setting the ground-work for years:
www.theguardian.com
The real danger would come from extremists who could possibly claim proof of life outside our planet to be some sort of satanic deception.
We're not short of stupid people on this planet (Or on this website for that matter)
They've been setting the ground-work for years:

The pope has said that he would baptise a Martian – but would they want our religions?
Steve Rose: Pope Francis has speculated as to what would happen if an expedition of extraterrestrials wanted to convert to Christianity, but they're probably closer to God than we are anyway
The real danger would come from extremists who could possibly claim proof of life outside our planet to be some sort of satanic deception.
We're not short of stupid people on this planet (Or on this website for that matter)