Power Rangers Megaforce premieres early 2013 with 22 episodes including holiday specials.
This could mean many things. Fans are hoping that Goseiger footage will be used for only 22 episodes and then move on to Gokaiger. But with how Samurai was aired, many believe that 22 will air in 2013 and the rest of the other 20 episodes will be in 2014 all including Goseiger footage. Hopefully someone will clear things up.
Also a special thank you to Fury Diamond of RangerCrew for going to the Licensing Exop to provide the fandom with all this information. Thanks a lot!