Earlier today we reported that some industry insiders were preparing to leak an upcoming Wii U game. Emily Rogers, Liam Robertson, and NeoGAF user ShockingAlbert apparently had four or five different sources telling them that about an upcoming Wii U game. The group was planning to pour over the details this weekend and reveal what they knew on Monday, but apparently things are moving ahead of schedule.
Emily Rogers has just announced on her Twitter account that (according to five separate sources) Intelligent Systems will be announcing a new Paper Mario game for Wii U this year. The game is reportedly in the testing and localization phase currently, which means development is nearly complete. This is still an unconfirmed rumor at this point, but it's coming from multiple reliable sources. We'll be on the lookout for more information as it surfaces.