From the Mosaic site:

The Complete Chick Webb & Ella Fitzgerald Decca Sessions (1929-1941) 7 CDs
Release Date: Early 2012

The tandem of Chick Webb (“The King of the Savoy Ballroom”) and Ella Fitzgerald (“The First Lady of Song”) brought together a drummer whose powerful execution and rhythmic drive became a model for drummers up to the present day; and a vocalist who, although in her rudimentary years, was to influence practically all vocalists in the pop and jazz idiom.

The recordings gathered for this major retrospective contain the astonishing Webb and his tight band from their first records on Brunswick right through all of the recordings for American Decca. When Chick died in 1939 Ella was the new headliner for the band (led at various times by Edgar Sampson and Teddy McRae) until 1941. These recordings with the big band and splinter groups from the band are also included and not only do they reveal a consistently vibrant working unit but the increasing maturity of Ella’s natural swing and poise.

This focus on the Webb / Fitzgerald Decca sessions is an invaluable examination of an underappreciated band, an outstanding jazz innovator in Webb and one of the all-time eminent vocalists of any period. For the first time we have a complete retrospective of both Chick and Ella in the best sound ever captured of the music from mint 78s and original test pressings. Included are remarkable examples of Webb instrumentals that silenced all those “battle of the band” challengers at the Savoy: “Harlem Congo”, “Who Ya Hunchin’” and “Liza”.

Overlooked from this band are other notable jazz artists making some of their first recordings: R & B pioneer Louis Jordan; alto man Hilton Jefferson; Edgar Sampson (who wrote and arranged “Stompin’ At The Savoy” for Chick); early trombone great Jimmy Harrison; trumpeter Taft Jordan who was a mainstay with Webb before joining the mid 40s Ellington band; outstanding reedman Wayman Carver; the great Fletcher Henderson bassist and leader John Kirby; journeyman trumpeters Mario Bauza and Bobby Stark; pianist Ram Ramirez and reedman Eddie Barefield. Commentary on the music will be provided by noted author John McDonough and rare photographs will pepper the set

I'm waiting for a 50's/early 60's Columbia Ellington set.

Amen brother. Wonder if they'd consider an early Ben Webster set. Be a great companion to their Prez, Hawk, and Chu sets. He played with a lot of great bands prior to Ellington - would be a really nice collection.

Chick/Ella set up now for preorder:

http://www.mosaicrecords.com/genres.asp?dept=50

An important aspect of this Chick / Ella set -- Mosaic indicates that while much of this set has seen previous issue on CD, they took the time to "pitch correct" all of the transfers. It also has several new-to-CD or never-before-issued Alternate Takes.

Wonder if we'll ever see a cd release of the first Johnny Hodges LP only box? I would buy that. I would also like an Ellington 50's Sony box. There's still quite a bit of material of that period in the vaults only, & released only on LP &/or French cd's.

Yeah, I always wanted that early-1950s Hodges set. I have his later Mosaic Verve set though. I may be mistaken (I don't have my copies in front of me) but I think Hodges' early Verve leader sides ended up on cd in a three albums on two cds reissue series. Some under Hodges' name, and I think a few under Ben Webster's name.

I'm pretty sure you're right on both. I also have the Verve/Mosaic Hodges cd box & all of their Ellingtons. I used to try to be a DE & related competist, it's just about impossible to succeed, though!