Teams play a full Regular Season in their leagues so yes they can offer Season Tickets ,
11 Home & 11 away + 1 Magic Weekend Game =23
below is an except from the Policy Review pertaining to the ' Middle Teir ' Play Offs :-
PROPOSALS 5.1.14 From 2015 the Super League (Tier 1) will comprise 12 teams.
5.1.15 From 2015 the Championship (Tier 2) will comprise 12 teams
5.1.18 After 23 rounds the season Play Offs will commence with the 24 teams splitting into three groups of 8
5.1.22 Each Play Off group will comprise 7 fixtures.
5.1.23 In the Super League Qualifying Play Offs (the middle
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the four teams who have qualified from the Championship will receive the benefit of 4 home game fixtures.
5.1.26 In the Super League Qualifying Play Offs no Semi-Finals or Grand Final are envisaged. The first three teams in this ‘mini league’ will qualify for re-admission into the Super League competition for the following year. However, at the end of the Play Offs series, the team ranked fourth will play the team ranked fifth in a one-off game to determine the last Super League place for the following season