RE: Reusing Map Stuff

I am happy to reuse my own map, but not knowing Dom1 I hoped on the comment from the Devs that they liked the Dom1 mechanism more, where the Dominion could change the very lands where the worshippers where dwelling! This sound kinda cool! For in Dom2 Ctis is still at a disadvantage when located in a Swampy area - which is sort of counterintuitive, although miasma makes up for it...
...but Gods should be able to
slowly change their lands of their worshippers, no? Anyone here remembering Populous?

What about expensive terrain changing ritual spells? Of course, they would only make sense if terrain would affect anything else than initial populatiion and non-survival+non-flying movement...