The 21-year-old has failed to make the breakthrough at The Hawthorns since he joined the club from Dundee United in 2011.
According to the Birmingham Mail, Blues boss Lee Clark is ready to hand the Scotland Under-21 international an opportunity to move to St Andrew's on a temporary basis.
Allan made 10 appearances on loan at Portsmouth last season before ending the campaign with MK Dons.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| P | Leicester CityLeicester | 44 | 30 | 4 | 10 | 86 | 39 | 47 | 94 |
| 2 | Leeds UnitedLeeds | 45 | 27 | 9 | 9 | 80 | 41 | 39 | 90 |
| 3 | Ipswich TownIpswich | 44 | 26 | 12 | 6 | 88 | 56 | 32 | 90 |
| 4 | Southampton | 45 | 25 | 9 | 11 | 85 | 62 | 23 | 84 |
| 5 | Norwich CityNorwich | 45 | 21 | 10 | 14 | 79 | 63 | 16 | 73 |
| 6 | West Bromwich AlbionWest Brom | 45 | 20 | 12 | 13 | 67 | 47 | 20 | 72 |
| 7 | Hull City | 45 | 19 | 13 | 13 | 68 | 59 | 9 | 70 |
| 8 | Middlesbrough | 45 | 19 | 9 | 17 | 68 | 61 | 7 | 66 |
| 9 | Coventry CityCoventry | 44 | 17 | 13 | 14 | 68 | 55 | 13 | 64 |
| 10 | Preston North EndPreston | 44 | 18 | 9 | 17 | 56 | 61 | -5 | 63 |
| 11 | Bristol City | 45 | 17 | 11 | 17 | 53 | 47 | 6 | 62 |
| 12 | Cardiff CityCardiff | 45 | 19 | 5 | 21 | 51 | 65 | -14 | 62 |
| 13 | Swansea CitySwansea | 45 | 15 | 12 | 18 | 59 | 64 | -5 | 57 |
| 14 | Watford | 45 | 13 | 17 | 15 | 60 | 58 | 2 | 56 |
| 15 | Sunderland | 45 | 16 | 8 | 21 | 52 | 52 | 0 | 56 |
| 16 | Millwall | 45 | 15 | 11 | 19 | 44 | 55 | -11 | 56 |
| 17 | Queens Park RangersQPR | 45 | 14 | 11 | 20 | 45 | 57 | -12 | 53 |
| 18 | Stoke CityStoke | 45 | 14 | 11 | 20 | 45 | 60 | -15 | 53 |
| 19 | Blackburn RoversBlackburn | 45 | 13 | 11 | 21 | 58 | 74 | -16 | 50 |
| 20 | Sheffield WednesdaySheff Weds | 45 | 14 | 8 | 23 | 42 | 68 | -26 | 50 |
| 21 | Plymouth ArgylePlymouth | 45 | 12 | 12 | 21 | 58 | 70 | -12 | 48 |
| 22 | Birmingham CityBirmingham | 45 | 12 | 11 | 22 | 49 | 65 | -16 | 47 |
| 23 | Huddersfield TownHuddersfield | 45 | 9 | 18 | 18 | 48 | 75 | -27 | 45 |
| R | Rotherham UnitedRotherham | 45 | 4 | 12 | 29 | 32 | 87 | -55 | 24 |
| > Championship Full Table | |||||||||
