Not wanting to blow my own trumpet too much but I did post this back on June 8th.
The internal space could be released by reopening the courtyard in front of Bethany Chapel (which is buried inside Howells, but more or less complete) with a short atrium/arcade joining it to the central market.
The intervention is blindingly obvious so I don't get why people are getting so excited about it. Meanwhile the hotel block is ghastly, too tall and the plan provides no connection into the Central market. Of course, it's all indicative at this stage so I'm not too bothered.
One small point though. the historic name for the square in front of Bethany is Wharton Court. Why use a made-up name when a real one exists?