He added: "The XI who are picked will need to raise their game and play with the same pride, passion and quality we saw against Bristol City in the last round of the Cup."
Should Brentford beat Hinckley in next week's replay, they will meet Luton again in the third round.
Allen has no fresh injury concerns, with on-loan Millwall striker Ben May expected to make way for Burton. Luton are expected to include former Brentford striker Rowan Vine in their line-up.