I'm not Alan, but I can answer your question. As long as you have the lifetime license for AnyDVD, it will continue to decrypt DVD's for you. AnyDVD relied on an online database for many Blu-ray movies, but not for DVD's.
Now, there may be a few DVD's in the future that come with extra protection schemes. That is a possibility, and AnyDVD will not be updated to deal with them.
For those, you might have to use a different decrypter, but they should be few and far between.