Disappointing. Aside from the red area @0:26, the zone looks to be meh. It's either boring green grass, boring greek architecture, or it's blatant rehashed old zones like Tyrian human villages or Elona desert villages or more New Kaineng.
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That is a game design issue. Once you beat the HoT story, there were still masteries to grind out an fun adventures to do to gain mastery exp, and there were the sublime meta events that were enjoyable and rewarding.
In PoF you beat the story, get the griffon mount, and then you're done. You level up the masteries incredibly quickly, to the point you probably maxxed out all except the Griffon mastery before you even beat the story (and you will easily max out the Griffon mastery within just going through the first two episodes of season 4). Even if the masteries took longer, there is no fun content to do in PoF maps over and over. There are no adventure minigames and there are no fun and rewarding meta event chains to do over and over like HoT.
(IBS had the grindiest masteries but they were only relevant to IBS content, and even then they were not transformative like gliding or mounts, so there was little incentive to complete them). The Drizzlewood meta chain is fun and rewarding enough to keep the map alive.
EoD suffered like PoF, though you don't max out all of the masteries just going through the story so there is some incentive to spend a few hours in Catha finishing them off, but once again there were no adventure minigames. Meta event chains are back, but they were not well designed (also exacerbated by the 60 player cap problem that constantly results in map progress being reset). So you just do Dragon's End a few times.
If these new expansion zones are to have longevity after people beat the story, then they need 1. stuff to progress towards that is relevant to the playerbase (not legendary weapons that cost $100+ in mats to complete that don't make you noticeably stronger), 2. fun content to do that progression on such as adventure minigames or well designed meta events, and 3. need to have a map cap higher than 60 players to prevent map progress from being constantly reset and making for an aggravating and unrewarding experience.