If every outcome was a pass with various conditions then the viva wouldn’t be an exam. Failing is possible but not likely. A rare outcome, not one you should expect.
Failure is an option for the PhD viva, but one that comes at the end of a generally long list of possible outcomes: no corrections, minor corrections, major corrections, resubmission without a viva, resubmission with a viva, awarded an MPhil, no award. Failure is the exceptionally rare last option that makes the viva an exam and not some kind of confirmation process.
Don’t expect it for your viva. Given everything you’ve done and how far you’ve come, it’s not an option for you and your thesis.
