I think the delay might be healthy for the line.
They said they are still shipping Waves 6, 7.5 & 8 (odd that they skipped over Wave 7, but oh well).
We know there will be LOTS of Saga Legends, there are so many variants coming, our heads are going to spin - forget the five new figures, they'll be the easy ones - the three new pit droid sets, the SA 501st and the two remaining Sandtroopers will have us all scrambling to complete our SL sets.
There will be four more Evolutions sets, the second round of Order-66 2-packs and some exclusive vehicles/beasts if the rumor reports are to be believed. Not to mention the two 3-packs for TFU.
What was supposed to be the final Comic 2-pack wave for 2007 is finally shipping now and I'm sure there will be another wave in between these and the wave with Anakin/Durge.
And to top it all off, they are going to ship 2008 Waves 1 and 2 between now and the fall.
As far as I'm concerned that's plenty of product, especially when you factor in the IJ onslaught in April/May.
In fact, I'm willing to bet that the machines/assembly lines that make Star Wars figures had to be "lent out" to the IJ line so they could have enough product on the shelves for the launch of that line. And I'm MORE than fine with that - with the way Hasbro has been talking in recent Q&A's it looks like they have plans to make the IJ line MASSIVE and as much as I would love to get into it, I'm starting to think I might pass.
After the heavy fall/x-mas season last year, I will welcome the break, save up some $$$ and make the impact of the 2008 fall/x-mas SW offerings less painful.