IHG has lifestyle: indigo,

Crown Plaza , competing with other signature brand marriott, hilton Hyatt..

upper Upscale IC competing with JWM , Conrad, Grand Hyatt..

So it looks like IHG missing a luxury brand to match with Marriott's St Regis, Ritz, Hyatt's Park, Hilton's WA...

Which brand of IHG group can promote to compete with or should they make a new one?