As I was talking to my sister earlier today, she plays a hunter, about this wonderful addon, she showed some interest about how would this addon deal with the traps. She wanted to know if this addon could not only show the cooldown for the trap, but also show for how long the trap is going to be up (activated so a mob could get frozen/set on fire/etc).
I don't know if this "feature" would be useful for other classes, maybe it will for shamans, but I thought I'd request it anyway.
So, for short, when using a freeze trap, two bars would be created, one for the trap cooldown, and the other one showing for how long the trap would be active on the floor.
Thanks in advance.
I suggest using Chronometer for that purpose, it does exactly what you described and you can make the bars look just like the ones from CDT2. ;)