Qwerty
“Rabbi Butman, on jis radio program, regularly says that when Moshiach comes there won’t be any more Shnayim Ochzin Bitalis. Rather we’ll only have the Kabbalistic meaning of the Gemara. Thos attitude explains why Lubavichers don’t care what Rambam or the Gemara says. They think we’re in a new era where Kabbalah reigns.”
I’m not familiar with his shiurim, but he was probably referring to what it says in Tanya, that because forgetfulness comes from klipa, we won’t need to learn Halacha more than once as we won’t forget it. Also, the Tanya continues, it could be that by learning the mysticism behind the Halacha, we will anyways know the Halacha. Therefore, our time will be spent on the secrets of the Torah, but this is not because we won’t keep Halacha, au contraire as above.
In fact, the Rebbe always sent people to Rabbanim, and stressed that any changes in observance of Halacha can only happen through Rabbanim.