I bought the Sims2 DVD edition. It came with a few extras that were cool. I think if they put some extras in the DVD it would rock. Remember, its a DVD edition. Meaning that there would be the regular 4CDs available, too.
Of course, by the time it comes out, maybe most games will be on DVD. I donno.
I can say for sure, I hope it comes in a jewel case, either way. These big "VHS" style cases are annoying. I want jewel cases!!!