The problem with the Ettenmoors is that there's been no meaningful development/balance work in so long and there have been numerous unfulfilled promises. This leads to disillusionment and, frankly, a terrible playerbase filled with players whose mindset to PvP is damaged/seriously flawed. Most PvPers currently in game have no idea how to play their class to even a base means, aren't interested in fair/fun fights, and are solely focused on the dopamine hit from zerging for points.

Your suggestions seem reasonable, but I'd add a few: heal-tagging/point calculations from zerging, simplification and continuation of Freep Armor sets (leveling the playing field of Freep gear is a priority), continued reward/objective systems to give reasons to PvP besides simply chasing kills, and some other issues like the number of Creep maps (zerg mentality), base floor of certain Creep classes (Defiler is brainless), etc.

There's a large population of PvPers mostly residing in PvP Discords that were very invested in Fantus's work, and took a lot of time to share feedback/ideas. If you show good faith, I'm sure you'll be able to draw their attendance/participation. However, I remain skeptical as SSG/Turbine's poor leadership, communication, feedback system (none), and a festering/cancerous playerbase means that we're likely too far gone (barring a benevolent millionaire bestows all his resources to restore PvP). You're going to need to fix a lot of fundamental things AND then have the patience to continue giving it resources/attention over a long time for it to payoff- there's been so much damage done to the system AND the quality of players participating. I doubt that's a realistic scenario.

Good luck- you're going to need it.