Please revert the chat back to the previous version. As you may have noticed in your stats, noone uses English chat anymore to chat, because it is completely cluttered up with everything that should actually be in the Combat Log.
Also make chat visible in battle again, with the option to make transparent and resize. (currently I am forced to have chat closed when in battle, and this is bad for communicating with teammates)
Many people have been posted about this topic, and every single comment was negative. I actually cannot remember a single person say the new chat system is “not bad”.