Here’s the info. on the variants for TMNT #8 from IDW.  Available on March 28, 2012.

  1. Cover A (Dan Duncan) - regular cover shipped in a 4:1 ratio (A:B) in a single order (i.e., if shops order only 1 copy they get Cover A; if they order 4 copies of Cover A they can then purchase one copy of Cover B)
  2. Cover B (Kevin Eastman) - regular cover shipped in a 4:1 ratio (A:B) in a single order (i.e., shops must order 4 copies of Cover A in order to purchase one copy of Cover B)
  3. Cover RI (Simon Gane) - 10 copy Retailer Incentive (i.e., shops that order 8 copies of Cover A and 2 copies of Cover B get this one free)