I was watching the finalboss interview with a developer and a question was asked about animation/visual interaction with casters and their artifact weapons as some classes use daggers etc and they might not be shown that much. The developer then mentioned that there might some animations that tie in and then went further and mentioned that they are looking at investigating doing something with the guardian artifact besides changing our form.
Whilst we knew that our form was going to change I havent seen any other mention of something like this happening until that interview so thought it was quite interesting.
Original Question -
https://youtu.be/qpAYPI-g75g?t=10m20s
Guardian Point about seeing weapons -
https://youtu.be/qpAYPI-g75g?t=11m43s