Time to reveal some more information to heat it up...

While you will still have all the weapons that you had in the save game which you used as base for BE, you will get a set of "soul weapons" that will be upgraded as you go on. Each character will get their own weapon, except Leximus, who will actually have his Soul Blade transformed.
Each of these "soul weapons" will be upgraded throughout the course of the game into a more powerful version. Here are the weapon names.
Leximus: Spectral Sword, Ultra Titan, Omega Blade, ????? ?????
Endout: Ghost Claw, Meta Claw, Inner Fury, ??????? ?????
Ariana: Soul Whip, Spirit Tamer, Astral Extension, ????? ?????????
Sydon: Power Blade, Avenger, Dragonsoul, ?????????
Obviously I am not revealing the names of the most powerful versions. <3
Each character will also gain a new and powerful skill at the same time when their weapon is upgraded.
Leximus: Lexima Burst, Chaotic Fury, Fused Soul, ??????? ?????
Endout: 1000 Fists, God Wrath, Final Destination, ???????? ??????
Ariana: Karma Disruptor, Creation, Sky Fire, ??????? ????
Sydon: Plasma Bomb, Ultra Guard, Soul Splitter, ???? ??????? ????
Yet again I am being an ass and hiding the names of the most powerful skills.