I just looked up the odds for Huddersfield Town next season to win the competitions there entered in:

To win League One 14:1 (although Town are 10:1 to get promoted)

To win the FA Cup 500:1

To win the League cup 500:1 which I think is a bit harsh as lots of the big clubs dont take the league cup seriously.

The Football League Trophy. What do you mean no on-line bookmakers have odds on the Johnsone's Paint Trophy?!?
Well we'll assume 14:1 as they the main rivals will be the same as for the League One title.
So I make that 49,000,000:1 on town doing the quadruple! Come on the Terriers!