Ok so I have been playing off and on for a while and I am just wondering if I am alone on the thought that Guild Features are pretty limited in ESO and haven't changed all that much since 2014.
So I am gonna list some quality of life features and some new features I would love to see added to the game and please do forgive me if this is the wrong area to post this in.

1. Guild Mail:
I would very much like to see a guild mail feature added so that Guild Leaders like myself can Mail new members information on how to join say Discord groups or other Guild Info for that matter like rules and how to move up in rank instead of having to go thru and individually selecting members. Also I am sure we all have guild events and being able to send out a mass email when our Message of the Day is already full enough and limited character-wise on how much info we can put in but it would be pretty awesome to have this feature added. Mailing by Ranks would be a pretty neat Mass Guild Mail feature as well for guild reminders. Or even a little check box list next to players' names on the guild that allows you to mail those you select.

2. Guild Levels:
I would love to see Guild Levels be a thing in the sense that the higher your guild level the more features you unlock for the guild itself like Guild Bank Space. Also perhaps adding a Guild Skill Tree that costs Gold to use a "buff" for example lots of players have millions of gold like myself and we rarely spend it but lets say our Guild lvl hits (x) number and we want to celebrate in the Guild Skill Buffs we can give our Members a 5% or 10% Exp buff for say 12 hours or 6hours even and it costs Gold to use like 25mill or 50mill that way actually donating to the guild means something more than just a Guild Trader for the week. This would also make Communities in the game far more active in my opinion.

3. Guild Bank
So this might be able to be worked into the above either via leveling a guild up or using Guild Funds donated to increase the Bank Capacity for Guilds. We can have 500 members in a guild yet only 500 Guild Inventory Slots this seems pretty low for such a high number of members in a guild. I do understand that we all have personal bank spaces but over the past several months my guild bank is constantly bouncing from 300 to Max because people are tossing in Set Items/Recipes/Motifs and other things to help members out within our community and we get limited by the 500 cap pretty often that some members have offered to hold items in personal storage as well as an alt guild just for storage to replenish the Main Guild Bank when it drops below 500. Anywho I feel an increase to Guild Banks is a much-needed Quality of Life feature for Guilds overall out of the 3 things listed.

There is other things I can mention but they aren't major things I feel would improve Communities within the game by much like a Guild Hall exclusive Housing system in which those houses can not be used as Personal Houses but are Guild Only Available with higher item placement capacity by leadership and above. Or let's say a Guild vs Guild vs Guild PvP Map/Instance where its 3 Guilds with 12 man premade duking it out for x amount of time on a small scale map with objective points (basically a larger version of BG but with Sieging and Smaller Forts). But yeah just some ideas I am sure have appeared in these forums in days past. I know some folks may disagree or not like these ideas but these are just suggestions of things myself and some of my guildies would like to see brought to the game. And there is a lot of monetization value that could be brought about by this if they wanted to capitalize on making some of the items available in the cash shop like Guild Bank Increase items/Guild Buff Exp Timer/Guild Houses/ etc.

Thanks for reading
HiroTenKai (Oni Knights GM)