I was wondering the same thing: I've been away on vacation for over a week and just realized that this offer ended. This makes me sad, and here's a little background as to why...
My son's autistic, and I wanted to get this version of the Sims and see if it would somehow help him express some of the feelings he sometimes has a hard time describing. I was thinking we could build little families together and I'd let him make up stories with them, all the while getting him to open up about what's going on with the characters and situations he's creating. Heck, he may even want to create Sim version of mom, dad, his older brother and himself, and I'd be super curious to discover what he could do. Now, I'm lucky that my son is lower on the autistic spectrum than many cases I've seen, but still: any tool that can get him to externalize his internal monologue could potentially be extremelly useful for him, and I was curious to see if the Sims 2 could play a part in this. I hope it comes back, because I was actually even looking on Origin to see if I could buy the Sims 2 Ultimate Edition, but it does not seem to be available for purchase. I'd love to see if it connects with my son & hopefully we'll be able to get it some other time.
Regardless, cheers! And thanks EA for doing something positive.