See i Have a solution to all this

Switch over to all 11+ style GWF
get rid of realms
convert the arena to a tiered system that you can move up tiers but not down-each tier gives better rewards then the lower one
get rid of the cities we have now
attach the full bonuses we have now available from cities to the guild level so level 3 guilds get 100% rep bonus level 4 guilds get 150% coin/credit bonus etc
merge the museum into guild level
add a NL tech
add new cities one of which gives noble lady bonus, the other cities give totally new bonuses that we would like - im having a brain fart at the moment so i can't think of new ones - maybe double stamina regeneration - double xp bonus-double arena rewards, etc
no cap on number of cities you can hold, any city can be attacked by any level guild.
make max level of gems 8- level 15 will take over a year to craft one even if you buy all 390,625 level 7 chips required to craft a level 15 chip from the fair
make a patch that warns you of the removal cost of level 4+ chips before embedding
when this patch goes on unembed all level 4+ chips from everyone on every server - this is a one time thing since there was never any warning on the cost to remove a level 4+ chip before embedding
then leave the cost to remove the level 4+ chips - but maybe cut them in half
make guild cool downs work like all other cool downs
remove the boost from ragnarok

OH and before doing all that
Fix the bugs/glitches (GWF,power display, server sync, lost items, black widow elite, etc)
And gives us all the new heroes up through general

Yeah taht would solve a lot of issues