Super League shareholders have voted to expand the competition from 14 to 15 teams for the 2027 season.
It marks the second successive year where the league has expanded after the increase from 12 teams to 14 teams for the 2026 campaign.
It will be the first time the league has operated with 15 teams as 11 out of 14 Super League clubs voted in favor of the expansion motion during a shareholders' meeting.
A league statement read: "Super League (Europe) Ltd has today held a shareholders' meeting to determine how many clubs will take part in the competition in 2027.
"Having agreed in favour of moving from 14 to 15 clubs, SLE has passed their decision on to the Rugby Football League Board.
"The RFL Board will now set out criteria and assemble a panel to run the process to judge against it.
"A recommendation will be made in due course."
Clubs will now be invited to apply to be the 15th team, although it's widely expected that the expansion will present London Broncos with an opportunity to rejoin Super League.
The Championship Grand Final and 1895 Cup winners from last season ranked 16th on the yearly grading list, below fellow Championship side Barrow Raiders, and have made no secret of their desire to join Super League.
Backed by Australian businessman Grant Wechsel and former Brisbane Broncos star Darren Lockyer, the Broncos were in contention to join the previous expansion but were overlooked when Bradford, Toulouse and York were added to the league.
On top of the expansion, Super League clubs have also voted in favour of two amendments to the league's salary cap regulations, which should enable greater flexibility with injuries and young players.
The first provides salary cap dispensation if a player is injured for over eight cap-relevant matches, allowing clubs to sign a replacement player for the period.
The second amendment allows players aged 23 or under who had not previously played in any salary capped matches to feature in two games without triggering an increase in a club's salary cap spending.
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