- I don't think voice acting was ever planed, mainly because it's probably a costly thing - and when you hire cheap actors, quality takes a toll. However the custom voice set is an interesting idea. I myself am alright with silent protagonists.
- Definitely need a better chat window!
- The UI doesn't seem quite right, indeed. It's not a big deal, but some features doesn't feel polished or final. As player we got accustomed to certain habits, including closing panels with ESC. A few other of those small but real issues have been discussed on the forums, like switching inventories by clicking on the portraits ( instead you have to either re-open the inventory or use the arrows at the top of the panel ).
- Trading window, a recurrent bug since the alpha

- I've seen worst minimaps... I think it's okay.
- Teleporter Pyramids have been a constant feature since the early days of the game promotion, so they are absolutely working as intended, yes. Since you can virtually go your separate ways, it's nice to have the option to regroup at will in order not to miss interesting or important events.