He's a great character, but probably can't carry a franchise (2 movies tops) because he didn't have any really good enemies.
He is the Prince of Wakanda, a highly advanced and secretive nation in Africa, as well as their champion (like Captain America).
In the comics he's one of the best hand to hand fighters (on par with Cap), highly intelligent (top 5-15 smartest), integrated advances technology into his suit (similar to, but much not nearly as robust as an Iron Man suit), and even has a mystical component to his mantle and skill set.
He's best in limited series' or as part of a team.