I dunno that I did, I just repeated what other people said. That's hardly a prediction. But, yes, GW2HoT is expandalone and current players are upset that they have to "buy" the core game again. Obviously you're not buying the core game since they have all but given away the last few months but still. This makes the most sense for ArenaNet as what they need is new players and this is the simplest introduction for them.
My 2nd "prediction" is that I said it wouldn't include a character slot. I didn't say that here but I had a heated argument in-game with someone about it. They got heated, not me.
As for pricing, well, I was eating my breakfast and it struck me as genius. If you buy Deluxe you would be an idiot not to buy Ultimate since the gem value more than covers the "additional" cost. In UK pricing the gems in Ultimate make it "cost" just £2.50 more than Standard. Since you get an £8 character slot plus extras for that £2.50 it's an amazing bargain. What that does mean though is that the £60 basic Deluxe pack is disgustingly over-priced and it's obviously been priced that way to make the upgrade to Ultimate more attractive. So, congrats on that one Anet/NCSoft!
So, which will I pre-order? Have you guessed? That's right! None of them!
Pre-ordering a game with no release date is an absolute mug's game. Oh, and testing their game for them is supposed to be a bonus? Yeah, you can stick that where the sun don't shine.
I was pretty sure that HoT wasn't a day one purchase for me, now I won't even think about it until it goes on sale.