yeah, have 1701 special edition and it's a really nice game. also tried the new game's demo and I fairly pleased so far (though I still need more time with it for a verdict).
beware though, ubisoft slammed a fairly nasty drm on the thing. something with limited activations as in spore. in case that's an issue. I also think it goes by a different name overeas, something dawn of discovery.
Actually, it probably uses the same Tages system the other Anno games have (the demo does).
I'm also a fan of 1701, and the demo for this one played well, too. Certainly an interesting era, having you starting off in 1404.