I played 1, 2 and 3 all in a row and it's neat to see how they build on each other and are all good games--although 3 definitely is the best, and what I've tried of the ones after felt like they missed something. If you enjoy 3 and want a newer take on this, the King's Bounty series and that new Age of Wonders III game seem closer to the legacy of 3.
If this had happened before Patrick's move I would have been more terrified--but looking at what's happened since his move: Scoops and the Wolf, Spelunkycast, GB Chicago--it really has increased the content in super positive and new ways. I'm excited for what this will bring -- best of luck!!