Do you WANT survivors? Sorry to answer a question with a question LOL.
IF you want survivors, carefully collect some eggs (those attached to a small plant would be the easiest to save), put them in a CLEAN tote with an airstone, and wait a few days and you will have fry.
IF you want to let nature take its course, most of the eggs are likely to be eaten (other fish, dragonfly nymphs, frogs, etc). If they manage to stay hidden til they are about an inch in size, they are likely to survive, and then the question will be how many do you have room to keep.
We have had some survivors outside, but I never found them in our old pond til they were a couple of inches in size. This year, I dont want a ton of babies to stay out there, and have multi species, and only want certain ones, so catching as many as we can find. Plus we had koi spawn in QT, so raising them out too LOL