There's no release date for the Pocket Edition updates, but Mojang wrote that "everything is going to plan." We presume this sentence was written while stroking a fluffy white cat and/or onboard the Death Star.
Mojang is also "pausing" access to the Pocket Realms beta, which allows for persistent worlds stored on private servers. "The Realms team is currently focused on the upcoming release of PC Realms," Mojang wrote. "Once that's done, we'll be in a better place to work on Pocket Realms and make it as good as it possibly can be, which will be later this year." The pause will go into effect on March 1.