I asked this question a few days ago, slightly tongue in cheek but.................
If the remaining Prem teams are adamant they want to remain in a Prem League with more teams than 4 or 5, why can't they each run a 2nd team themselves on alternate weeks and re-name it Super League?
eg Belle Vue Aces; and Belle Vue 'Kings'
Leicester Lions; and Leicester 'Cats'
Kings Lynn Stars; and Kings Lynn 'Moons'
Sheffield Tigers; and Sheffield 'Rivets'
Ipswich Witches; and Ipswich 'Crones'?
or similar....