A book I'm very much looking forward to is Bernardine Evaristo's Blonde Roots. It's an alternative-history novel about black slavers kidnapping white children from England for use as slaves in the New World.
I don't know who did the cover design for the Hamish Hamilton hardback, but it's great, and another example of effective black and white illustration.
Evaristo's three previous novels (two in verse--Lara and The Emperor's Babe--and one in a mixture of poetry and prose, Soul Tourists) are all good, with Babe probably being the best. It's about Zuleika, a black citizen of Londinium in 211 AD, who becomes the object of ROman Emperor Septimus Severus's lust. It was also blessed with a very nice, simple but effective cover done in the signature sketchy style of illustrator David Tazzyman.