Quentin Tarantino. After the last three debacles I say anything goes. At worst we'll bee a lot of bloodshed, wookie rapists, and maybe there'll be some slick but long-winded dialogue. At best it will be his magnum opus, and we will never view the franchise in the same light again.
Fun fact, Tarantino's Pulp Fiction is a Viacom film, Viacom is a Disney property.
Rodriguez would be a fabulous choice too, but I imagine there'd be a lot of race jokes that would either be ill-fitting or much too lore based to make sense to anyone but the most stalwart fans.
Realistically, can't say who because most directors either piss me off or just seem wrong. The Wachowski's? Nope. Bay? HELL NO! Boll? Might be fun, couldn't be any more tragic than what Lucas did to it.