The Monster Hunter Frontier series is getting a "G" version on April 15. Monster Hunter Frontier G for PC and Xbox 360 has additional monsters and new gear like Sengoku Basara crossover armor. Capcom and Type-Moon also made crossover content with Fate/stay Night costume parts and weapons.
Saber has the Excalibur: Sword of Promised Victory (great sword) and Caiburn: Golden Sword of the Victorious (long sword). Archer has special dual blades and a Fate/stay bow.
Monster Hunter Frontier G comes out on April 15 in Japan.