That very much sets up a “Break Glass Only In Case Of Emergency” situation, and it’s hard to imagine things getting that crazy extreme in Black Panther. The man will be woken up soon enough — given that we see him fighting side-by-side with the Wakandan army in the first trailer for The Avengers: Infinity War, but you probably shouldn’t expect any of that to start going down in Marvel’s latest solo adventure.
The Winter Soldier didn’t freeze himself because he wanted to; he did it because he doesn’t feel that he can fully function in the real world given his past with Hydra brainwashing.
As cool as it might have been to see Black Panther at some point in his movie go to the cryogenics lab and pick up a secret weapon, there is a logic to that not actually happening.