Will Riot ever update the other maps?

I get that Summoner's Rift is the main map and deserved priority for a major visual update, and now they're updating the champions to match the new Rift. But will they ever do the same kind of thing for Howling Abyss, Twisted Treeline, and Crystal Scar? I don't mean finally updating the minons and nexus, like they're doing in ARAM, but like a full scale map update. Those maps are eye sores.