Two new trademarks for MEGA Dream ex (MEGAドリームex) and Abyss Eye (アビスアイ) have been filed by Pokemon. They're under the same terms as trademarks used for set names in the past.
 
MEGA Dream ex sounds like Japan's annual High Class Pack set that releases every November or December. They always have card mechanics in the name, such as Terastal Festival ex, Shiny Treasure ex, VSTAR Universe, VMAX Climax, Shiny Star V, TAG All Stars, and GX Ultra Shiny. In this case, we have both "MEGA" and "ex" in the title.