There is 2 new Mew cards in Simplify Chinese, from Pokemon 151, first of them is from regular 151 collection, but there are 12 SR, 3 SSR, 1 AR and 1 UR, the chance to get some of them is 0,73%. The chance to pull the Mew would be 0,0429% thats why the card is selling from first day over 300€ (ratios in Simplified Chinese are prefixed in every box).
Second card of MEW is a SAR card (with texture), is from promo packs where each booster pack is selling around 40$ and comes with 2 cards, i guess ratio of this card would be quite similar to 151 Mew, but this one is amazing... Again, not launched in Japanese, English or other language over Simplified Chinese... never seen any mew card with this kind of illustration (reminds me to Pikachu SAR from Surging Sparks.