It appears that those leading the campaign for a permanent public memorial (other than that in Lincoln Cathedral) have recruited a well known face to help the campaign:
Robin Gibb (yes, that Robin Gibb, of the Brothers Gibb), who also happens to be President of the Heritage Foundation.
He speaks very eloquently in this video:
Robin Gibb - Bomber Command Memorial
Gulf War 1 PoW Flt Lt John Nichol, and Sqn Ldr Tony Iveson DFC, or 617Sqn's Tirpitz raids
David Graham - Heritage Foundation, and MRAF Sir Micheal Beetham, CAS during the Falklands, and WWII Lancaster pilot
Here's to finally getting a memorial to the 55,628...