It will be an area of around 400 square meters lit by LED tiles 20 cm by 20 cm.
That makes 25 fixture per square meter and a total of 10000 fixtures - if you consider each tiles as a single RGB fixture - would be 2000 fixtures of you consider a row of five tiles as a fixture. Anyway it results in 30,000 channels of DMX that would be about 60 universes...

The pixel array size is still important as it will not be compact like a square but the fixture will be more distributed... My guess right now is an image size of 200 x 200 would be fine...

For now I will pass on the info that 60 universes are possible - that sure is a winning point :-)

I will get back to you as soon as I know some more...

Thanks so far,

Olli