When I look at Brandon he does look like he could develop a nice physical frame on him, maybe not that of Bale or Ronaldo, but definitely Arjen Robben or example.
I do think his shot accuracy as he usually hits it low with power whereas the likes if Townsend and Downing from my experience seem to go for the Hollywood goal which often sees them hit row Z.
I don't see him as nimble as a Di Maria or a Reus, but I can see him developing into a real quick byline runner who hopefully becomes a clinical finisher when cutting in.
He just needs to keep his head down and work on his consistency and technical passing game, the worst thing that can happen to him is believing is own hype, which is developing by the day this season.