As a long time resident of Whitley Bay, I wouldn't hold your breath! This has been talked about for years and years. To be fair, they have finally started to do some work on that part of the sea front, so hopefully something will be done with the dome this time round.
dmg - those towers have always been there, and the dome has always been somewhat obscured from that angle. The only new bits being proposed are the mini-domes on top of the towers and the first floor extensions either side. You're right though - people would pretty much accept anything to see the area restored to use!
I'm sure Mark would turn up if they ever got their act together. I often wonder whether he's been down to the new plaza to see his lyrics set into the stonework.