Rf won't die, it's easy, people love easy. And simple.
Also other mods do what ic2 does because they copied other mods. Lemming basically made TE by making industrial craft that used mj's. Now he even has electric tools. Other mods seem to replace ic2 because they remake old ideas and make them easier and simpler.
At least mdiyo, even if he seems to be a twit, had some originality, lemming just copies other mods.
I wouldn't be surprised if he came out with some TE mechanic where you get resources from some sort of animal you find, then breed them to get new materials.
Lemming has quit modding because of jerks who didn't appreciate modders work (Sure, it may be "copied", but 99.999% of all inventions are anyway), like you, thus RF will eventually die.