Eurogamer did a little digging and found that, back on April 16, Community Coordinator Jason Leavy said there would be an option of using a keyboard for chatting on consoles. A day later though, he apologized for the confusion and revealed keyboard text chat support isn’t actually happening:
We wanted to provide an update on keyboard support for the console version of ESOTU.
"Unfortunately, the message I posted in this thread yesterday was based on our development plans from earlier in the year, which included keyboard support for chat. However, keyboard support for chat is not something that will be available for the console version of the game. You will be able to use a keyboard for text entry in areas such as guild naming, etc., but not for chatting."
Mouse support is not planned for the console version of ESOTU.
Meanwhile, on the official support page for The Elder Scrolls Online, it says, “Console versions of the game will also provide limited input by USB-connected keyboards for features not already supported by voice chat or controller input.”
http://www.playstationlifestyle.net/2015/05/01/elder-scrolls-online-ps4-xbox-one-wont-support-keyboard-text-chat-quick-chat-being-looked-into/
That is a real shame considering that is one of the things that makes MMO's good. This is one of the reasons consoles lag in this category.
