*Thought* What if he wrapped Cap's shield in hellfire or Thor's hammer?
A flaming indestructible frisbee that ricochets off of walls? That is perhaps one of the most epic things I have ever heard of. If could give you a cookie Bride i'd give you a baker's dozen.
Imagine him pitching it at Thor and having him smack it with the hammer to send it flying like in Age of Ultron, give it a hell of a lot more momentum!
Since Cap had to leave his shield behind in Siberia, I'm thinking he'll get a new one in Wakanda. What I would hope for, though, is an upgrade (I may have mentioned this already) where the shield is double-layered, so that there's two in one and if he's stuck blocking something, he can detached the second one and throw it (kind of like what the Hulk did when he was using those two bits of metal to destroy the sound machines in his movie). It's kind of the next logical step for his shield since everything he can really do with it at this point has been done.