Yep, in the afterword of Volume 8 of the light novel the author said that we are gonna get a new manga adaption of Date a Live, starting from "Dead end Tohka" (probably with better art too)
Her is what the author wrote:
Well then, there is one announcement I would like to make.
A new comic version of the original book [Date A Live] has been announced in the monthly shounen ace! Waah! *clap**clap*!
It isn’t a spin off and is a comic-lized version of the original book starting from [Tohka dead end].
The one supervising this is Inui Sekihiko-san. He acknowledged portraying cool actions so please expect it by all means.
Inui Sekihiko... That's the dude who brought us "Ratman" so I guess it's gonna look quite good
I don't really know when the first chapter comes out, but this announcement was made in volume 8 which came out on september 20th, so the manga could start in the next few months
Oh, and the anime is getting a second season as well
Plot?
Well, most likely the "Yamai tempest" and "Miku" arcs, about 12 or 13 episodes