Mottling is a recessive gene, so it should not appear in the first generation crossed offspring. (In practice, chicks may show a little bit of mottling at some stages of growth, but they will not be nicely mottled as adults.)
Lacing: crossing any two colors of laced Wyandottes should give laced chicks.
Crossing any of the laced Wyandottes with the Jubilee Orpingtons will probably give chicks that have some kind of patterning on their bodies, but probably not good-quality lacing. If the Wyandotte male is Gold Laced, the patterning will probably be black on red/gold coloring. Using a different color of Wyandotte would change some of the colors of the chicks.
Gold Laced male with Silver Laced female will give sex-linked chicks: daughters will have gold, sons will have Silver. The color difference may or may not be noticeable at hatch, but should be quite clear by the time they grow very many feathers. By the time they finish growing up, the Silver sons may have gold or red leakage in some places, and the silver areas might be a bit yellowish rather than a nice clean white color.
Splash x black gives 100% blue chicks. In the case of laced Wyandottes, that applies only to the lacing color around the edges of the feathers, not the color in the middle of the feathers.
Blue x black gives 50% black chicks and 50% blue chicks (again, just the lacing, not the color in the middle of the feathers.)
Mixing the reds and the golds will probably give chicks with a color in-between the two parent colors (dark gold or light red).
