News coming out of Brickpicker from Ed is that the LEGO CUUSOO/Ideas Exo Suit will retail for $34.99. We already know that the release date will be sometime in August with the set number 21109. The LEGO Ideas team is finalizing the Exo Suit for the official reveal for sometime in the near future. Check out The New Elementary to see what the LEGO team has been working on.
Disclaimer: The pricing is speculative but I believe the information is legit.