Good. These new ones look far more profesional and sharp. The hats should be mandatory, to complete the image and tidy up the details. Details matter a great deal.
Disney was once known for caring about the details, weren't they? 
Let's hope they give the bus fleet livery a new look as well, as on my last WDW visit I noticed the garish bus colors and thought it was looking very 1992 and rather tacky.
The WDW transportation system has not had a good run these past few years. They need a fresh start, and a look that says they are modern, profesional and very squared away. Repainting the buses with a modern livery that matches these far more profesional uniforms would be the next logical step.
I am reminded of the
extremely professional and polite bus drivers at
Tokyo Disney Resort. When I vist Tokyo Disneyland, I usually stay at the Tokyo Bay Hilton behind Tokyo Disneyland. They have these 1930's themed buses circling the Resort at the "Good Neighbor Hotels", picking up guests and driving them to the Resort monorail station. It's only a 2 or 3 minute bus ride, but they operate these
GORGEOUS themed buses with immaculately dressed bus drivers, bowing at you as you board and acting as if you are stepping aboard a grand ocean liner of the 1930's. They wear these full costumes, including the
hat and white gloves, in even the muggiest and hottest of Tokyo summers that rival Orlando's oppresive climate. If Tokyo can do this, certainly WDW can too. Again, it's the details that matter. Or at least Disney used to care about the details at their American parks as much as they still care about them in Tokyo.
Can you imagine a bus service, with sharply dressed bus driver, like this for WDW???
