Injustice 3: 10 More Characters NetherRealm Must Include
2. Plastic Man
One of the long-requested characters to join Injustice, it's about time that Plastic Man actually makes the elongated step from comic and animation to games also.
The stretchy abilities of Plastic Man mean that NetherRealm would be able to create some truly comic-y level wackiness in terms of his fighting style, he doesn't share the serious 'oh my intellect is such a burden on me that I must remain a jerk at all times' personality of his Marvel counterpart, Reed Richards, after all (just look at that lovely, definitely not creepy, grin).
Furthermore, this personality would bring some added levity to the Injustice games, a feature that the comics touted despite the general lack of it in NetherRealm's outputs.
Plus, with the gear system of Injustice 2 likely to be maintained, there would finally the opportunity to give him some better dress sense.