Does anyone know?
I have no idea, but I would assume that the Spell Tomes do include the updated cards (since the outdated ones are probably no longer in production). Of course, you will need to make sure you order a newer Spell Tome set, since some distributors will no doubt have extra copies of the older versions and not really care to check which is which.
If worst comes to worst, you can always print off the updated cards from the website and use those (maybe put those in front of the actual cards inside of a sleeve).