Check out below a portion of the discography listing for The Monkees from the AllMusic website (under the Compilations tab). It contains some interesting titles, like "Complete Albums Box" and "Cereal Box: Singles."
Are these possible releases being planned for the 50th Anniversary? Once you click on the "Complete Albums Box" or "Cereal Box: Singles" entries, you receive this message:
These titles, of course, could be completely erroneous, but I thought it was worth highlighting in the event that sites like AllMusic receive a heads-up about future releases from the record labels.
UPDATE: After a little more research, it looks like Rhino is indeed releasing something called Cereal Box Records. This listing and description was found on the website of online retailer Bull Moose (but has yet to be announced officially by Monkees.com or Rhino Records):
Back in the 1970's, U.S. cereal companies did several "cereal box 7-inch LPs." These were free records that came with the cereal box. This will be a collection of four of them with songs from The Monkees.
The four cardboard records advertised as part of the package include the following songs:
"Last Train to Clarksville"
"Words" (Previously Unreleased TV Mix)
"I Never Thought It Peculiar" (Previously Unreleased TV Mix)
"Valleri" (Previously Unreleased TV Mix)
According to Bull Moose, the release date is listed as January 19, 2016. Here's the image of the set as shown on their website:
On top of that, Bull Moose is also showing a 10 CD box set, Classic Album Collection, with a scheduled release date of January 19, 2016. Here's their description of it:
10 CD complete album collection spanning The Monkees' career, including a bonus disc of singles.
Monkees Farewell Tour
Dolenz sings Nesmith
Pre-Order Sandoval Book
Monkee Mania Radio on Live365