It would be VERY useful to be able to see your alliance teammates full roster.
Being able to see ANY players full roster by being able to look at their player profile (and also see their base layout) would be a good feature, but at Least make it so you can allow other alliance members to see your roster.
It can have a setting that you can turn on or off, or only allow certain members (such as ‘ranked only’ - leaders, co-leaders, elders).
Also when viewing other peoples rosters, you should be able to select:
“can only see heroes on Teams”,
or “can only see favorite (locked) heroes”
(by the way, heroes should enter your roster automatically locked if they are non-duplicates, or 5*)