The racebending thing, the way DC is doing it, doesn't really work (and is sort of offensive). On the Flash TV show, the Wests fall for the black roulette. On Supergirl, Jimmy Olsen. On DCEU, it's up to Perry White and Deadshot. Meanwhile, in comics and all other media, all of these characters remain white.
That's not really a positive move towards black people inclusion, in the long run, is just black people getting hand me downs. At least with the West family, they seem to be trying to be consistent, as Iris will be black in DCEU also. But Wally will remain a stone on their shoe on this case, I believe. He has a built fandom in comics, not a small one, one that doesn't want Wally to be Kid Flash - regardless of if he is the main Flash or not - and the way they handled the new kid generated a shit-ton of reaction. I really, really doubt the TV show, or even the movies in the doubtful scenario that Wally makes his way into the DCU, will be able to make the kid the "main" Wally in the comics buying audience eyes; at least not for those who care.
Following the same logic, though: could Barry Allen be made asian if the DCEU is a big success?