I haven't been to Glass for breakfast on my last three stays there as upon exiting the lifts the queue was stretching towards the lifts. They clearly had to do something IMO at the weekends.
If the breakfast is going to be restricted to the Exec Lounge then I hope they improve the quality of the offer which consists of boiled eggs, bakery, cold cuts and some sad looking fruit.
Personally if there has to be a change then I'd prefer a differentiation between Gold and Diamond (as exists at some other properties), with Diamonds being allowed breakfast in Glass.