Here is your K.I.S.S. (Keep it Simple...) moment.
Bottom line is... Progression right? We play to progress, to achieve new goals/items and become better then what we were..right? It is what keeps us logging in and ( for a lot of us) spending MONEY on this game. Pretty Simple concept.
So then, why bother progressing to End Game status ...because you will only....
1.) Scale us down and negate some of the progression we may have achieved.
2.) Keep us running content that bring ZERO progression and very little to ZERO REWARDS.
3.) Change the game as to make new content unnecessary to play ( Avernus T-3's and ZCM Weapons )
4.) Make it near impossible to have more then ONE Character (as the time and cost is to high for most of us)
Being able to have multiple characters like... let's say, a Healer, Tank and a DPS. would give us lots to do and lots of reasons to play and even INVEST in this game. Again, a Pretty Simple concept.
Roughly 20% of our Alliance has quit the game in the first weeks of DEC..due to... well, basically they crossed the finished line. Got their Celestial Weapons and BAM.. no need to play any more as it took most of their resources to build ONE character.
Neverwinter could have one of the biggest players bases... if you just stop telling those End Gamers... Goodbye, we have nothing for you.. NEXT...
Just Give us a reason to play, to invest time and money, because right now..... there is none.