I've asked this before, but why make new content for those who already can't or won't utilize what the game has to offer? It's not a gear issue, you can do everything in K6 gear. Why make another dungeon for guilds that can't kill Thoth Amon? Nothing is going to work for them apart from a T2.5 tank and spank where only a handful of people have to pay attention. For that crowd, might as well make more world bosses. They already have T3, several 6 mans, T3.5, and T4 for their progression, so what is the purpose of another dungeon below T4?
A lot of vets will leave game for good if there isn't a T4 level raid, or higher. There's simply nothing left to appeal to them.
The new raid can be difficult without being solely a gear check. You just need a raid full of people who can pay attention to a few details for 10 minutes at a time, and that's why there are some guilds who can't do Thoth Amon, much less T4. Making some new T3 or lower level tank and spanks has little appeal for half the server. I hope they don't go that route.
I want them to be difficult, but logical. Not illogical nonsense where you use trial and error until you guess the right way. I love puzzles and so forth within fights, but I would hate to see more content that does like zodiac where the lights bug out or the boss runs all the way around the raid to target a player who's right on top of him already, and wipes the raid. I have more confidence in the devs based on what we've seen thusfar than I did the previous crew.
Since they already have been working on PoC, it's obviously not going to be an extension of Temple of Erlic.