4/ Lets talk PvP: What about grouping with friends for minigames? Minigames are most popular pvp content and it's a solo experience that you can't enjoy with friends, are there plans to change/adjust that (much requested ability to be able to sign up with 2-3 people).
Changes to the mini-game signup up are 100% locked to the code base, and I am not a coder, therefore it comes down to prioritizing those code changes against all other code tasks.
There are pending tasks for looking into the sign up system when it comes to the small scale team arena which has been previously talked about. The team version can't work the same way as the solo one due to there simply being too many variable conditions to handle inside a script. When this signup system is looked at for the team arena that would be a great time to also look into making any changes to the minigame signup system. Whether or not any such changes are simple or not will become apparent at that time.