"The threat caused by your next damaging attack and all actions taken for 6 sec afterwards will be transferred to the target party or raid member, and all damage caused by the target is increased by 15% during this time. Transferred threat is not permanent, and will fade after 30 sec."
I'm fairly certain that while the threat transfer is not permanent, it doesn't come back to you. The threat that the target receives from tricks fades over time, but the threat does not bounce back at you. Maybe someone can chime in with another story here, but I've never noticed that shortly after hitting TotT that my threat bounces back up X%. This would mean that, so long as the extra threat you receive while the other rogues hits you with TotT doesn't push you to pulling aggro, the threat you get would fade away, and the threat you transfer isn't going to be there either.