[Freeciv-Dev] Glaciars: what happens after they leave

[Jason Todd <idjason@xxxxxxxx>]

 I was thinking about what happens to squares after a glaciar
leaves. So here it is... A square can't possibly be unchaged
after a glaciar. A forest can't remain a forest, etc. So
mountains should become hills, forests and grasslands should
become plains, plains should stay the same, but as a bonus
deserts should become plains too due to the increase in
good stuff in the soil left by the glaciar. As for huts, they
should stay. Now for specials and rivers; rivers, IMHO should
stay the way they were, but specials should be randomly created
at the same level as the server is set.

 So, what does everyone think? And can it be done?