The Samsung Galaxy S7 was announced today at the Mobile World Congress event in Barcelona Spain. Following the announcement, Cricket Wireless put out a press release stating that it will be offering the device both online and at its more than 3,800 nationwide stores. However, the AT&T owned MVNO did not announce any pricing information or a launch date for Samsung's latest flagship device.
The Samsung Galaxy S7 will launch with a retail price of $649-$699 at carrier independant retailers nationwide, although I'd imagine you'll be able to get one cheaper through Cricket once they begin offering it. Cricket is known to offer nice discounts at times on select devices, with the caveat that you have to maintain service with them for a select amount of time.