In addition to the Sean Lennon and Charlotte Kemp Muhl interview in the latest edition of Mojo - as mentioned by @parlance above (a four page spread), it also includes a one page interview with Giles Martin about working on the soundtrack for the DVD/Blu-Ray reissue of A Hard Day's Night.
One revealing comment he makes on what to expect, audio-wise, is this:
It's more like an enhanced mono version than a wide stereo version, but that makes it more "Beatles" to me.