What if Bar Torr was inertia?
Everyone hated how Bart was handled in the new52 so in this I will try to make a half reasonable solution!
Impulse would be introduced in a flash comic as part of a story arc.Now eobard is avaliable in the new52 we can use him as a link.Reverse flash is teaming up with the rogues. When him and Barry are fighting they enter the mirror world to find young child who is captured.This is Bart Allen who turns out to be a descendant of both Barry and Eobard.Bart was kidnapped by Thawne in the future who was worried he would be tainted by the Allen family and corrupted,so he travelled in time and abandoned him in the mirror world at a young age.Bart was yet to absorb his inherent speed powers from the speed force as he cannot absorb it in the mirror world.Other speedster have stored speed force energy they use when in the mirror world without even relishing.Barry defeats Thawne somehow and due to the rogues don't kill/hurt women or children policy agree with the flash to release Bart. Bart then must adapt to his speed powers and dangers he did not face in the mirror world as a new superhero Impulse(named by Captain Cold).quick footnotes:
the mirror world replaces virtual reality for original Bart,
Eobard disappeared for a while after his defeat so we do not know if this is Barry and Iris descendants or Barry and someone else.
Bart will keep his impulsiveness.
Bart will temporarily be adopted by Barry until new speedster introduction.(either the quicks,Max Mercury or Jay)
Now for Bar Torr:
Bar torr is still having violence tendencies in missions going as far as almost killing,and when Bart is introduced he feels he has been replaced and gives into his violent past donning his future rebel costume and becoming Inertia-Barts new arch nemesis.
So what do you think-any plot holes missing any questions or any suggestions?