All we know is there's a delay, BIG delay to the release of the packs, we've no idea why because no one is telling us why, all we have is speculation and grape vines.
Well seen as noone else seems to be saying anything I guess I can explain:
Currently the 1.4.7 packs are in beta on the launcher, they have been in this state for a week which is what we normally do then if there are not any issues with them they are changed to RB. Our update day is normally today so I expect to see them either pushed to public or work being done on them today to fix bugs that came up during testing. I personally think that post was incorrect as we always run a week of beta testing after a pack is uploaded as non RB so we can make sure there are no bugs so I don't think there would have ever been an update a couple of days after like it says in the post.
I think work on MagicWorld2 and TechWorld2 is just starting now and so those updates should be ready within the next few weeks.
I am told that there are still some critical bugs in 1.5.1 in some mods and IC2 is not released so that is why our pack has not been released as if it was released without those mods then worlds would require regen again when they are added and if it was in it would be unplayable.
The policy generally at FTB is that we don't do ETA's hence the disclaimer in the post:
* This outlined timeline is our current estimated time for release. No promises are given or guarantees offered. These are the timelines we hope to achieve, however sometimes unforeseen events prevent us from achieving these goals.*
People generally don't pay any attention to these disclaimers me included so the current ETA that you can quote wherever you want is: "It'll be out when its out" we don't want to release a pack until it is ready for public use because if it is not we will simply get a load of bug reports which we are already aware of and trying to fix which just causes inconvenience for both us and you as players who attempt to play a incomplete modpack for this reason we will be holding the beta of 1.5.1 until these bugs are fixed.
PS. To the people saying we are waiting on redpower this is not true. As stated in previous news posts we are no longer going to be waiting on redpower and future packs will most probably not contain is as we could be waiting for an infinite time. That said if it does appear we would consider readding it to the packs. To put it plainly our eggs are not in that basket.