No, not that kind.
I'm not sure if this idea (in its exact form) has been suggested before, although I have found a similar suggestion in a "dwarf recruiter" system (in that it changes the way immigration works).
The idea is to solve the problem, or at least what I perceive to be the problem, with immigration. The way it works now (as far as I'm aware), you have to wait and cross your fingers for dwarves skilled in specific areas that you currently need. The wiki does say that the skills of immigrants are, to some degree, tailored to the needs of your fortress. This is fine, but what if you decide that you need more soldiers/smiths/etc. than the game decides you need? Or what if you're unsatisfied with the level of proficiency in the immigrants?
My new "aggressive recruitment" system could help. The basic idea is to send a dwarf out to seek for dwarves skilled to a specific degree in specific areas. It's a tradeoff -- you lose one dwarf for a certain amount of time (or potentially forever, as I will explain), for the possible promise of one or more skilled, specialized dwarves. Of course, this wouldn't be foolproof (otherwise it wouldn't be !!FUN!!): your envoy could become lost or be killed, or they could come back with clever dwarves that bluffed their way into a comfy room in an upstart fortress, or they could come back entirely empty-handed. To prevent these outcomes, you would have to choose dwarves with combat skills (to improve their survivability), points in the Judge of Intent skill (to improve the quality of yield), and/or points in Persuasion (to improve the quantity of yield).
A side effect of this new system would be that it would give your normally useless dwarves something to do. You could send dwarves that you feel are a drain on your fortress on these missions and, given that they probably have no combat skills to speak of, you would expect to never see them again. Of course, if they do return, it could be with even more useless dwarves.
What do you guys think? I realize that some of you will consider the current immigration system to be just another element of challenge in the game -- you have to work with what you've got -- but my new system would A) be optional and B) have its own set of challenges.