Thea Render is coming out with next edition v1.1, which has a codename "Chameleon". The new edition has two very important additions. The first is a performance improvement, up to x2, which makes Thea faster than ever while the second is the very important integration with Motiva Colimo that makes possible to generate "infinite" variations from a single render. There are some cool features in Thea that improve the workflow a lot, e.g. working with History panel.
Thea V1.1 Demoreel - Changes Introduced in Fast Forward
More informations including pricing, you will find here: Thea Render