Should be, yes. We've got Cartagena as a location already in the game (not used on any islands), so that will be the first mainland city.Is it possible to place cities on the mainland?
EDIT: Want to try it! Want to try it! I guess it won't be possible without a new game?
I don't know if a new game will be needed, but I'll let you know once I've tested it.
Are any of the other islands going to be rotated or moved?
None have been/will be rotated because that would also mean rotating the island models seen in 3D sailing mode.
And hopefully I won't need to move any more islands, unless anyone has any objections to the proposed layout.