I made some pretty significant changes to my home page. I had originally focused quite heavily on blue widgets and red widgets, so I changed all instances of text on my page to say red and blue widgets to see if it might affect my rankings by changing my keyword density.
There has been no change in the serps, although google's cache shows my updated page. It's only been a few days. Should I expect a change down the road, or can I assume that since google has the new page, any changes to the SERPs would have been made already.