Depends what kind you are talking about.
For example they can patch the hacks currently like the ones you download but people will just update the addresses and new ones will spring up.
If you are talking about features; they did it once before so they should be able to do it again however I think it would be very difficult and someone will come up with a new way to bypass it shortly afterwards therefore they wouldn't want to give it a go if it's only going to delay it for a short while.