Before Beta and During Beta
Bring back the old gear to instead of making sure people people have to upgrade and reuse the same weapons. They can get other weapons of the same star level and all THREE RINGS has to do is bring back old gear like the Kat armor that they "gave back" to us game and replace _____ Night-blade or Trolka or etc and that same weapon can just be revamped. Then hand it back to the test and see their response. After THREE RINGS can decide what price, how powerful, and what effect it has now.
And with these "new items" there can be new enemies like "Torto-drone" as a boss at 5 stars difficulty as you fight after you become a vanguard you get extra stages put him in a new one and make his gear powerful but only "craft-able" after you beat him and it would cost a little bit more money to buy along with a DLC with the gear that looks like certain Npcs or have at least let npcs have their own equipment that you cant get. I mean THREE RINGS already needs ideas for update and it easily questionable why they REMOVED ITEMS instead of fixing them.
or with all of the give new updates like new types mission, abilities, level features and ability to make your own room in a guild with your own crowns!!!!! that will help the guild with the upkeep whenever you put new things in your room you pay the upkeep without noticing that all money went to them but you at least got your own room item.
You bring up a good point, but you aren't actually suggesting anything. Also, your concept has been elaborated more on here.
So, +1 for concept of bringing old enemies and gear back, although there isn't actually much gear that was taken out. For enemies, Three rings has said they are working on it. But that was a while ago. :(
For the guild part, just pay the cost of your room's upkeep into the treasury and it makes no difference..