Hi Scenario
I have to say: I've loved and really enjoyed wandering around the Trollshaws / Lone-Lands borders, catching what few glimpses I can of the new Angle region. It's been a lot of fun on BR and on Live watching the landscape slowly change from those vantage points.
I really love that you are expanding Harloeg up to the Hoarwell River (Yes, I'm a LOTRO travel maven and an absolute fan of the worldbuilding this game does!).
Now, one of the things I'm really - hoping - you'll consider doing as part of "the Angle" is, well, that missing chunk of Eregion that's in between current Eregion and the Angle - "West Eregion," sort to speak. You can use those hilly-mountains by Mirobel as a border.
Part of me wishes you'd clear-up the Mirobel region in particular. I've never liked it that the world landscape version of Tham Mirdain is perpetually sealed-off behind a Volume I instance wall; I can't tell you how much I'd love it if there was an open landscape version and perhaps some different portal / clicky-object mechanism to do the Volume I quest.
That would then allow you to use the hilly-mountains and the Ring-Forge area as the southwestern borders of Eregion (*until, perhaps, the Greenway north of Enedwaith appears in-game later with, I'd assume, Tharbad, etc.).
Those hills / mountains could then border "West Eregion" to the bottom corner of the Angle.
Now, here's another idea I'd love to throw your way:
"Mirobel," of course, is in lieu of Celebrimbor's Capital City from the Lore. But the scaling of Mirobel in-game makes it look like it was no larger than Celondim- and, frankly, Eregion was populated enough that, when I compare the Eregion ruins with say Fornost, or Dol Amroth, or Pelargir, or even Minas Tirith, I really find them..... lacking now. They haven't aged very well since they were made in an era long before city-building became "a thing" in LOTRO.
So, my first thought: Please consider, at some point, expanding those ruins, perhaps by using West Eregion right beyond where the Sirannon and Glanduin Rivers meet- and considering it "Noldor suburbs", hehe

Having an open-world version of Tham Mirdain would be cool for helping with this quite a bit (*I can imagine concerts held in front of the Antheron mural on Landroval, for example- there's lots of potential there for a game-world, non-instanced version of that neck of the woods).
If Second Age Eregion was ever a possibility as a "Tales of Yore" area- the expanded ruins of Mirobel / Tham Mirdain could be "built" with that in mind- almost a ruined outline of what could become the first fully-fledged out High Elven City ever made in-game, and "Tales of Yore" would definitely be the mechanism, I think, to use to tell those stories.
West Eregion could probably have some more Barad Morlas / Gwingris-style towns spread-out- furthering the Elven ruins theme you have going-on in parts of the Angle as I've seen from a distance.
This would also allow players to straddle the Bruinen quite a lot more- at least from the Fords in Trollshaws down to where it meets the Hoarwell to become the Gwaithlo.
I remember, when you did your fantastic stream on "A Casual Stroll through Eregion," you had talked about wanting to really revisit the area. I think this would be a prime opportunity to do so in order to make sure the new Angle region is contiguous with Eregion and to also "set up," perhaps, any potential future plans for the area further down the road.
It's definitely one of my favorite regions in the game- and I'm already enjoying what glimpses I can see of the Angle and am looking forward to exploring it proper when it appears on BR for formal testing. Many kudos to you on all the awesome new housing changes, the new ambient environments in Rohan and Gondor (*am really hoping the indoor ambient lighting can appear in Gondor too!), and am very excited for Erebor! Thank you, Scenario!

Thanks for listening!
Cheers!
