I have almost all of the descendants into the 20th century of this couple. I have all of the Beranger ancestors back into France. Unfortunately, I don't have any ancestors of Remi LeBlanc.
I know of no connection between Mary Elena Beranger with the Micmacs. I don't know about Remi. If there is a connection, it would likely be through Marie Therese, who married to a Claude Petitpas about 1686.
My wife is a first cousin, twice removed, to Mary Elens Beranger. She is also a GGGGGGGgranddaughter of Marie Therese, but through a different line.