Pokemon Sunday aired like usual in Japan early Sunday mornings. I happened to miss the episode due to bad grades, but PokeBeach has reported that New Cards have been revealed. These cards are new cards for the "Revived Legends" Set. These cards have 2 Pokemon on each card giving it two types and two weaknesses. The Pokemon are Entei & Raikou, Entei & Suicune, Raikou & Suicune. The cards are similar to the half cards for LEGEND Lugia & Ho-Oh, which needed two card halves to work.
Source:
PokeBeach
*Credits to PokeBeach for images and info.