So, I will keep it simple and straight to suggestions.
• Achievements - I believe it would be a good inviting part of the game to achievement hunters and new players, rewards for completing an achievement by stage color (badges of some sort, medals (bronze, silver, gold, platinum, and more if interesting). Rewards could be gems, gold, gear, even gauntlets could be shoved into achievement section.
• Bestiary - I totally don't remember the previous bosses I defeated and who they were any more. Sometimes I just wanna observe the models and their details and read about them. It would be interesting to have them unlocked upon first encounter, including Bounty creatures and event mobs.
• PM (personal message) - I believe we need this, mainly for communicating with players without the need to switch to discord, or even recruitment purposes.
• World Chat - Definitely need this. If you could manage with Translation option like in many modern games, would be a plus for every type of players.
• extras - less important, but ideas nonetheless. rings/necklaces/trinkets? With some extra mechanical tweaking as to what buff it should contain.
And how about items that give you something very good but with a twist? Example: (Ring, crit chance 25 % + crit DMG 10 %, BUT you suffer 5% DMG of your total armor to your health, per turn.) A bit random numbers but it's an idea.
Market Refresh for a gem cost? Player Auction maybe?
That's all I guess. For now. Thank you and Apologies if some people are against some aspects of these suggestions. I understand that World Chat could bring Spammers, grinders who sell their accounts and vendors who sell coin outside the game like in many other games, but block player does wonders if implemented.