See aboveThey don't have to get into the top 4 in order to get a 5th or 6th post-lottery draft slot (if they finish 5th or 6th pre-lottery). It's only if they finish 7th pre-lotto that they can only keep their pick if they move up to 1-4 in the lotto.
But they have plenty of possibility (given the standings now) to finish with a 5th or 6th (or maybe even 4th in a highly unlikely situation), so they're not at all locked out from a 5th or 6th post-lotto outcome yet.