Amazon has the Panasonic LX100 for $559.95 right now (compare at $797.99). The LX100 features a 16.8MP 4/3″ sensor and a Leica 24-75mm equivalent lens with a bright f/1.7-2.8 aperture. The camera captures 12.8MP still images in 4:3 aspect ratio. Additionally, it captures 4K video at 30/24 fps and 1080p video at 60 fps. Check it out while it lasts here on Amazon.com.
Sony has a new trade-in program for its A9 and A7 models with up to $500 off the A9 and $300 off the A7 models. Essentially, you trade in a working DSLR or mirrorless camera and get the discount applied toward a Sony full frame mirrorless camera. Complete details and a walkthrough of the process available here at B&H Photo.