I'm going to try and predict what's going to happen on this years X Factor (excluding Wildcards because they're yet to be announced). There's two possible outcomes. I've based both in betting odds.
Outcome #1 (Quadruple Elimination means 1 from each category leaves, Double Elimination means people at bottom leave)
Show 1 (Boys and Girls): Spencer eliminated
Show 2 (Overs and Groups): Jack and Joel eliminated
Show 3 (Boys and Girls): Alisah and Leon eliminated
Show 4 (Overs and Groups): Tracey and CutKelvins eliminated
Show 5 (Boys and Girls): Sam eliminated
Show 6 (Overs and Groups): Kevin eliminated
Show 7 (Girls and Groups): Lloyd eliminated (ALL BOYS OUT)
Show 8 (Girls and Groups): Talia Eliminated
Show 9 (Girls): Rai-Elle eliminated
Show 10 (Overs and Groups): Matt eliminated (ALL OVERS OUT)
Show 11 (Girls and Groups): Sean and Conor eliminated
Show 12 (Girls and Groups): Holly 3rd, Rak-Su 2nd, Grace 1st
16th - Spencer Sutherland (Boys)
15th - Jack and Joel (Groups)
14th - Alisah Bonaobra (Girls)
13th - Leon Mallett (Boys)
12th - Tracey Leanne Jefford (Overs)
11th - The CutKelvins (Groups)
10th - Sam Black (Boys)
9th - Kevin Davy White (Overs)
8th - Lloyd Mackey (Boys)
7th - Talia Dean (Overs)
6th - Rai-Elle Williams (Girls)
5th - Matt Linnen (Overs)
4th - Sean and Connor Price (Groups)
3rd - Rak-Su (Groups)
2nd - Holly Tandy (Girls)
1st - Grace Davies (Girls)
Outcome #2 (Anyone could go, categories not eliminated at same rate)
Show 1 (Boys and Girls): Spencer eliminated
Show 2 (Overs and Groups): Jack and Joel eliminated
Show 3 (Boys and Girls): Alisah and Leon eliminated
Show 4 (Overs and Groups): Tracey and Kevin eliminated
Show 5 (Boys and Girls): Sam eliminated
Show 6 (Overs and Groups): Talia eliminated
Show 7 (Girls and Groups): Lloyd eliminated (ALL BOYS OUT)
Show 8 (Overs and Groups): Matt eliminated (ALL OVERS OUT)
Show 9 (Girls and Groups): The CutKelvins eliminated
Show 10 (Girls and Groups): Rai-Elle Eliminated
Show 11 (Girls and Groups): Sean and Connor Eliminated
Show 12 (Girls and Groups): Holly 3rd, Rak-Su 2nd, Grace 1st
16th - Spencer Sutherland (Boys)
15th - Jack and Joel (Groups)
14th - Alisah Bonaobra (Girls)
13th - Leon Mallet (Boys)
12th - Tracey-Leanne Jefford (Overs)
11th - Kevin Davy-White (Overs)
10th - Sam Black (Boys)
9th - Talia Dean (Overs)
8th - Lloyd Mackey (Boys)
7th - Matt Linnen (Overs)
6th - The CutKelvins (Groups)
5th - Rai-Elle Williams (Girls)
4th - Sean and Connor Price (Groups)
3rd - Rak-Su (Groups)
2nd - Holly Tandy (Girls)
1st - Grace Davies (Girls)
Literally either way it'll be majority girls and groups left at the end
Depending when wildcards get announced I'll update this to see how things change.