This leak is fake.
Ignoring the stupidity of making Little Mac a Captain Falcon clone and choosing Galacta Knight over Bandana Dee, these two things immediately made me think that this leak was poorly made.
1. The Monado CAN'T be an item. For those who haven't played Xenoblade, the Monado is a sword that can properly be used by Shulk only as he was able to control it. Not only would making it an item devalue a weapon like this, but it would also contradict everything from Xenoblade. It would be like making the Master Sword an item.
2. Who the heck asked for the Hylian Goddesses? We've never even seen Din, Nayru, or Farore before and there are a ton of better Zelda characters (like Vaati and Ghirahim), so why choose the Goddesses over them?
This is just a poor, rubbish leak…