I read that this will support ISO EU layout (with LShift 1.25U + 1U), but it seems to require an addition of CF plate for this to be possible, is that correct?
the CF plate supports it but it looks like the PCB might not. it didn't in the china GB, so unless they're changing it for this one, i don't think it will. see if the runners comment on this at all
Will that add an extra cost or will the alu plate be swapped for this? (I wouldn't need an extra PCB)
CF plate adds an extra cost, yeah, you can only get an extra plate/pcb. it makes it easier for them to support it
In case of using a CF plate, how will that impact the total weight or looks?
it will make the board even lighter than it already is. i think this is the lightest alu TKL i've seen in a while
What's the difference between Black and MAO Black
Black is anodized black, MAO black is Microarc Oxodized black. MAO finishes are traditionally VERY fragile, I'd recommend staying away.
Hope this helps.