So, I looked around and even asked on IRC, but no-one really had a solid answer. The question is:
My brother has one level 70 horde (a mage), I have two (hunter and druid). Is it possible to have multiple characters on the one account in an arena team, ie a 2v2 team consisting of HisMage+MyDruid+MyHunter? In theory I could play at least 30% of games for the week with each character and get points for both of them.