Summary
Peter Molyneux's Masters Of Albion now has a page on Steam. In development at Molynux's 2012-founded studio 22cans. Looks like a mix of Populous and Black & White.
You'll also need to "fulfil orders from the vying factions - food for the people, clothes for the Lords, weapons and armour for the King" Town progression seems to revolve around the Arcanum, where you can trade favours for new blocks, product parts and magical powers.