I've found very little info on this and nothing on this site. Just found out about it after reading the local newspaper's site. The oldest player picked is 19 on Canada so I guess it's 19s and younger.
Includes quite a few draft eligible players (Dumba, Reilly, Subban, Murray etc) plus some high end prospects like Huberdeau, Scheifele, Strome, Rattie, Hamilton, and Murphy. I dunno how competitive a team the Russians are fielding but if these guys from Canada do go then might be a pretty good team and a good tourny.
It's 4 games, Aug 9/10 in Russia and 13/14 in Halifax, I don't know how much of it is being broadcast.