What if MK6 had a story mode that had you fight through various timelines in MK's history before MK6 begins? You could watch how Raiden was able to defeat Shinnok for the first time or watch as Scorpion went through his missions of vengeance.

Example: REPTILE

1. When Shao Kahn had a tournament in Zaterra.
(BARAKA)

2. Serving as a spy to Shang Tsung.
(LIU KANG)

3. Returns to serve as a bodyguard in Outworld.
(KUNG LAO)

4. Him and Jade try and track down Kitana.
(KITANA)

5. Sent to the Netherrealm for acts of genocide.
(QUAN-CHI)

6. Working as a general in Shinnok's army.
(SONYA)

7. Serving Nitara in Outworld.
(CYRAX)

8. Defeats Blaze and releases the Dragon King...
(BLAZE)

Other stories could be Sonya's, Baraka's, Drahmin's and Kano's.