Vine, 25, joined Blues from Luton for £2.5million in January but has yet to play a Premier League game.
His only two first-team appearances came in the Carling Cup and he failed to score in either of them.
Tribal Football Staff are dedicated to the football tribes from all over the world. Our team is passionate about delivering football news to our hundreds of thousands of followers in all the corners of the globe. Football is life, It never stops, Neither do we.