The Church Property Trust (C.P.T.)  have set up a web site "Cathedral Conversations" where they are seeking public opinion. The three options can be viewed at www.cathedralconversations.co.nz, where you can make an online submission.
Historic Places Canterbury encourages you to make a submission and recommends that Restoration (Option) 1 be endorsed by Heritage Supporters.

The "Conversation" Process concludes 3rd May.Media Coverage:

"Final Cathedral design options unveiled" (04/04/13)

"Landslide in votes on Cathedral" The Press (05/04/13)

"Critics slate 'bizarre' new cathedral" The Press (06/04/13)

"The consultation process for the Christchurch Cathedral design." podcast of Tommy Honey (Urbanist, Nine Till Noon, Radio New Zealand National)