Mondo will be releasing George Bletsis' new officially-licensed Back to the Future print tomorrow. This one's an 18″ x 24″ screenprint, in a numbered edition of 325, and will cost $45. There will also be a variant available (see below), in an edition of 175, for $65.
On sale Thursday, March 2nd, 2017, at a random time here: http://mondotees.com/. Follow Mondo on twitter for the on sale announcement.