Wider doors are just an idea for the COMAC design FR are giving feedback to. Wider aisles are also needed. The problem with the 737-800 are the narrow aisles, which dramatically slows down boarding compared to the A320.
I think this design will be fascinating once finalised...maybe COMAC will end up with 2 specs, a LCC model and full service model.
I can see inbuilt airstairs, wider aisles, more room for carry ons etc.
I wish FR would just rip out one of the rear toilets on the 738 and use it as a "hold" for all the carry ons....
Really don't know where to start with this. How does the aisle on an A320 increase boarding speed compared to a 738? Aside fro having a few less rows, the difference in loading time certainly cannot be described as "dramatic"
Your suggestion of a mini "hold" is also daft. Someone in row 1 needs to go to the back to ditch their carry on? What would that do for loading times?