Massive world size?

[Jopo]

OK, when looking at the world size file, I noticed that at this point the maximum vanilla world size was 104x64 tiles and Civ 5 (I presume the game is much the same engine wise) allows for maps that are 128x80 tiles, so I decided to make an experimental addition to my mod...

Here´s the XML code;

<Row>
<Type>WORLDSIZE_MASSIVE</Type>
<Description>TXT_KEY_WORLD_MASSIVE</Description>
<Help>TXT_KEY_WORLD_MASSIVE_HELP</Help>
<GridWidth>128</GridWidth>
<GridHeight>80</GridHeight>
<DefaultPlayers>12</DefaultPlayers>
<TargetNumCities>12</TargetNumCities>
<EstimatedNumCities>120</EstimatedNumCities>
<NumCitiesUnhealthPercent>50</NumCitiesUnhealthPercent>
<NumCitiesPolicyCostMod>5.0</NumCitiesPolicyCostMod>
<NumCitiesTechCostMod>2.75</NumCitiesTechCostMod>
<TerrainGrainChange>1</TerrainGrainChange>
<FeatureGrainChange>1</FeatureGrainChange>
</Row>


Now, what I want to ask is, will this work or do the mapscripts need to be overhauled as well?