The strike is over. We just came back from Paris. We originally had pre-purchased tickets, but they were canceled prior to us visiting due to the strike. We ended up just getting to the Catacomb entrance about 45/50 minutes early, waited until they opened, and then were inside within about 15 minutes of them opening. So if you don't get tickets in advance, just do this and save the stress. There is a McDonalds not too far away where you can go the washroom and get a snack to take to the line while you wait. We didn't do the crypt, just the catacombs themselves, so I can't give you any info on that specifically. I do recommend the audio guide, as it was very informative and interesting.
**Just a side note: there are quite a few stairs going down and you end up coming out at the gift shop when you are done. There are washrooms at the end for your convenience. Just an FYI.