I googled "another star like kic 8462852" and found this link, which gives an additional theory I didn't mention in the post. The new theory is that the dimming is caused by a protoplanetary disk that is positioned so we can't detect it.

Luckily it also says more research is going to be done in the next year, so we will have new information soon, relative to the grand scheme of things anyway.

http://www.sciencealert.com/researchers-just-found-a-second-dyson-sphere-star