No, I too have no clue as to how long the task will take, I know when they said it would be done- I figure they know what the task involves...
I guess you do too, and I guess you know all about programming- perhaps they should get some more programmers in, better management- whatever it takes really to prevent this kind of thing happening again.
If only it were that simple! More programmers, alas, rarely help as there's a limit to how many people can program a program at once.
I've got a suspicion that there are some major underlying rewrites of the CB that need to be done as a result of Essentials, and that causes a lot of cascading problems. You know how we're all loving the way that Wizards are going away from the strict progression of powers with Essentials? It's a programmer's nightmare.
I'm not dismissing the size of the task, I'm just saying that this month, for whatever reason, they weren't up to it. I think that's what some other people are remarking upon in this thread too- including the OP.
This is the 'I'm disappointed in WOTC not updating the CB thread', isn't it?
Think so.

I don't disagree at all that Wizards have dropped the ball here, and - along with others - I think they should be held to account for it. I just take offense at someone (not you) assuming that the CB update is "just" data entry.
Still, I can't see any excuse whatsoever for the D&D Compendium update being late. Surely it can't be *that* difficult to get the Essentials information into it?
CHeers!