would find it interesting class change by item or customization (character) in cash shop (customization change at the beginning of creation)
exemple: i crane hermit change to turtle hermit
*Of course it would be a new item this*
*Other Suggestions in most mmorpg*
Auto Login:mini box or circle option in Login screen (automatic connection)
panel with guild list , with option to request entry (Description and number of guild members)preferences in major villages
gameguard(anti cheat system)
possibility change guild symbol by any image
daily reward event 
