Title basically. Warden's netch has a timer, sorc's pets have a timer when their abilities are activated, necro's 2 summons have timers, even maw of the infernal has a timer.
This suggestion doesn't really matter for PC players since add-ons fix that, but it would be really nice for it to have a timer on console. It's hard to keep up all the time in longer PvE fights since it's hard to see with all the special effects. And I don't know how many times I've been screwed over in PvP because I forgot to refresh my 'oh ***' button.
I would really like to see this implemented, I doubt it would be hard to do and many console players would appreciate it.