It's nice they working on various language editions but that still doesn't solve the basic problem behind Pottermore: there's nothing about the site that makes you want to come back after you've visited all the Potter "moments."
The games are too limited. What's the fun in brewing a potion for 4 hours?? Not into the wand dueling.
Would love to see an operational wizard chess game as well as better "find the object games." We're finding objects but they really don't amount to much unless you plan on making potions and can use the "freebie" stuff. How about a real "find the hidden object game" with points associated or different levels of achievement?
Okay, so we got house points. So what? How about giving a discount in the Pottermore store to members of the house that won the cup for a limited time?
Just some thoughts....