It would be great, however, Poland would destroy every other league due to the money they pay out...
Every "decent" rider would choose to ride over there...
And any rider not riding over there, would happily leave their non Polish team and replace those who did...
I think a UK/Scandinavian League could work though, particularly if/when Poland force in the one extra league rule...
A more similar renumeration package across the three leagues and this would bring variety...
Use the Danish model, (five rider teams), and you could get 22 teams, meaning 21 home meetings...
It would also give a true "Elite" UK league for the UK teams to race in...
And would mean "Polish wages" wouldn't need to be paid to attract Polish top riders,(like happens already in Sweden and Denmark)...
As an example. Northampton opening in such a league would capture the imagination of the locals far more than a six team UK league would, I would suggest...