I have the CG221, and it is not widescreen.
When I bought it, this was the most expensive monitor on the market. This monitor was advertised as having been designed for color-critical graphic work, so color consistency and even illumination was implied. However, it is far worse in that respect than any widescreen monitor I have seen.
Notably, Eizo has apparently solved this defect in their new model, but it is forcing its customers to dish out another $5000 for a new monitor. No matter how you spin it, this is not fair business.
I don't understand you and am not sure, if you are not mixing the differnt models from EIZO around. The CG221 is brand new and the top of the line, so that EIZO should have released a newer model is simply not correct. I am leaving this discussion now.