Just read something via Google translate so can't be sure it was accurate - it was suggesting they'd have this every other year from what I could tell. Small number of teams at first but eventually more.
Couldn't really make sense of it as it used the word 'alternately' which made me think there'd be this one year, then domestic leagues the next, then back to this and so on. But then that would be really impractical so who knows? Also said it wouldn't displace existing leagues and I can't really make head nor tail of it.
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