The game is not boring because of the little content of cap 65, it is because it depends a lot on p2w, in cap 60 the opportunity to make gold was greater, make dgn and kill bears in the highland with your same level cap gave a good drop. They put cap 65 with new maps that give practically nothing and you go to highland bears or dgn 60 that previously gave a good drop and these no longer give as much for having a higher level.
At the end of the day it was the f2p player that gave the flavor to this server, and the p2w complements it, we are in which I include myself. A new cap will cause several to leave the server in which I am included, spend a lot of us to get my set and weapons +10 so that they put me cap 70 soon? no thanks. And I emphasize for the f2p player it will be even less attractive.
What they should do is put more PVE events, since the pvp is honestly dead by the same community and the grabbing of characters in 1 or 2 guilds.
This weekend it will be gvg from alts.
Now if the concern is to continue making money for vendetta as before, I think that cap 70 is not the solution.
I translated some words, my English is not very fluent.