I do not think it is possible, which is really unfortunate. My Sim has never made any of the lower level ones again, and some of them are really cute. It makes it so you cant paint all the pictures available with just one Sim, unless you use the cheat to lower the level again.
I also do not understand the stigma attached to bringing back an old thread, if it is relevant to your question. We have dozens of the exact same threads going on whining about the exact same thing, but everyone freaks out if a thread from a few months ago comes back. Now, instead of anyone being helpful, maybe learning something new that was found out during the interval, we will get 6 responses about how you brought back an old thread. :(