Bridge CC does not auto rotate my D4S files on import. It does rotate my D300s files.
This is not an auto feature of Bridge but has to be set to on in the camera software, check your D4s manual for this, it should provide you with several options. The camera writes metadata to the file, Bridge reads this and applies the rotation from the info of the metadata
Second issue I have sharpening applied to preview images only in preferences. Sharpening is only applied when image is opened in ACR not in the bridge preview window?
It should be the other way round, by default it is a reasonable subtle setting and very useful to judge the previews better for sharpness. There are tons of books written about sharpening but personally I only apply sharpness at the end of the process, I certainly would not use ACR sharpness settings at the start of processing the file in PS.
If your camera has been set to auto rotate and your sharpness at preview only is double checked to be set to on then it might be needed to reset your Bridge preferences. Restart Bridge holding down option key (Mac) or ctrl (win) and choose reset preferences and try again.