A club statement read: "Aston Villa can confirm that manager Steve Bruce and his assistants Colin Calderwood, Steve Agnew, Stephen Clemence and Gary Walsh are leaving their posts with immediate effect after having their contracts terminated".
Bruce oversaw his side play out a thrilling 3-3 draw against Preston North End in the Championship last night, with Glenn Whelan missing a stoppage time penalty kick to give his manager a much needed win.
Kevin MacDonald, Villa's under-23 manager, has... Bruce is understood to have been summoned to Bodymoor Heath yesterday morning where he was given the news by chief executive Christian Purslow.
Former Walsall boss Smith, who grew up a Villa fan in Great Barr, is also in the frame and a popular choice among supporters due to his recent work establishing Brentford as promotion contenders.
Henry was first mooted as a replacement for Bruce in July following the arrival of new owners Nassef Sawiris and Wes Edens.
Former Sheffield United, Huddersfield, Wigan, Crystal Palace and Sunderland boss Bruce guided Villa to the play-off final last season, but they were beaten 1-0 by Fulham and the club's failure to return to the top flight left them financially vulnerable.
Fonseca was heavily linked with the Everton job earlier this year but chose to stay in Ukraine, meaning it would be quite the shock if he now made the move to Villa Park - but with Mendes on board, nothing is impossible, as we have already seen with Wolverhampton Wanderers.