I was looking at the latest pictorial from MouseTimes and they have a picture that shows Midway Mania and California Screamin's loading station from the same view. If they covered up the stucco in the station and replaced it with the clapboard seen on Midway Mania and replaced the metal sheet roofs with the elaborate woodwork now seen on Midway Mania's rooflines, the station would be an immediate visual improvement. Then they could do some remodeling to better cover up the concrete plain-ness of the queue, replace the plain blue handrails with more detailed ones, add more vegetation, replace those ugly canvas covers, cover up the plain wall in front of the station, and theme that big, metal roundhouse in the back of the station and voila! A better environment around Screamin's queue and loading station. It would better match the rest of the pier and phase out that ugly corner of the park.
The marquee could be replaced with some better too.
They could also cover those blue supports with more elaborate ornate pillars.