Can you specify what you need clarification on? There have been several quotes of Paul in this thread that seemed to answer your question.
I'm quite curious what you would like clarification on that Paul hasn't already answered.
Will there be promo villains in the new oversize villain pack?
What are the changes to previous oversize villain cards in the new set of cards?
Will there be cards in the oversize villain pack that are for decks that have not yet been released?
The last question is just for my curiousity, but the first two have direct relevance on whether or not I want to buy the oversize villain pack.
Yes, "all" includes the promo cards.
The errata from older cards is being added, and there will be slight graphic design updates.
Yes.
And there you have it.
Apologies, my questions were not precise.
Will there be NEW promo villains in the new oversize villain pack?
What is the list of errata changes for the new oversize villain pack? Is it a couple of sentences on a couple of cards, or lots of sentences on lots of cards? How many cards are affected by the errata changes?
So far I've decided not to buy the oversized villain cards. I mostly don't use them, the errata seem to be few and well known, and there won't be very many new cards. But I'm on the cusp, as it would be nice to have a complete set and to not have to worry about remembering the errata.
Perhaps the best way to ask my questions are:
How many cards will be in the new villain pack?
How many of those cards are analogous to previous cards, but with errata changes?
How many of those cards are completely new cards?
I'm not the OP, but I would guess he was still asking for a definitive answer on who needs to buy this vs getting a for free. I understand it, but for crystal clear clarification, ordering Wrath of the Cosmos did not entitle you to the Oversized Villains, correct.? The only folks who will get this pack without having to order/pay for it are those who had previously ordered it when it was out of stock and have been waiting for it for a long time? I know it's been answered, but I think that will at least end the questions in the thread.
Man, you can tell you've been hanging around with Christopher a lot recently 
Please may I ask a couple of precisions on Andy's questions, which I think is closer to what people would actually like to know?
Will there be promo cards included that we have not seen before, in other words totally new and as yet unrevealed villain promos, or are we by default finished with all villain promos with what we have now?
What exactly does the graphic design update entail? Any chance of a sneek peak of what this will look like so that people can make an informed decision on their potential purchase?
When we say "cards for villain decks that have not yet been released" we are specifically talking about expansions (mini, regular, mega, or other) that will not be a part of (and therefore revealed at a later date than) this pre-order for Villains and it's accompanying mini-deck expansion has finished.
heh, ninja'd, but my precisions are still valid 
When you say "oversized" cards, I assume we're talking about all dimensions here, right? I would like my oversized cards to be 20mm thick. Do they come with a pallet jack?
Buy enough packs and a case of high-quality paper glue, and you should be set (although some assembly is required).
No pallet jack, though. This is 2015 - we get hoverboards.
VERY interesting…
… or maybe not, as there is the Villain mini expansion that comes with the pre-order and which has not yet been released. Oh, the ambiguity…
Ok, we've reached the limit of what I can answer, as these are things in Christopher's mind. Unfortunately for me (and by extension, the forum), he is headed out to sail the seven seas currently. Once he gets back, hopefully he can shed some light.
He joined the Navy?
He got caught up in an annual geek migration. Luckily it's a short migration - they just loop right back again a week later…
Guess that means there won't be any preorder updates any time soon.
Or will there…
Now that Craig, whom I presume is the community manager, has joined the conversation I am even more confused than before. Can we get a more in depth reply to what a lot of customers are frustrated about?
Why have those whom have purchased every single bit of Sentinels been left to repurchase oversized villain cards? Perhaps a clear explanation of the benefits of the new oversized pack will sell me and many others on it, instead of leaving us upset that we have cards that we purchased that are now worthless.
I'm not looking for forum members to answer this. I'm interested in GtG staff. Thanks!