I hope so, Snapchat being the company that they are they wouldn't let anyone know what they were up too. I hope there is an app soon but i don't think it will be any sooner then after //build/ aka when Windows 10 is released.
For now it looks like SnapChat is locking out users who acces stheir service via 3rd party App, getting those Apps pulled from the various App stores and are remaining silent about Windows Phone device access.