The morning of the game sparked more rumours of Alexis Sanchez's potential destination in January and with a move to Manchester United supposedly edging ever closer he was left out of the Arsenal squad entirely for their trip to Bournemouth.
First Wilson converted Ryan Fraser's teasing cross to restore parity in the 70th minute before Ibe fired home a second having been teed up by the scorer of Bournemouth's first.More news: Liverpool Enter Race To Sign Alexis Sanchez
Desperate for a win, the visitors started brightly on the south coast with youngster Ainsley Maitland-Niles firing against the crossbar in the eighth minute.
Arsenal must now dust themselves down as they look to get back to winning ways in the Premier League when they take on Crystal Palace at The Emirates next weekend.
It was a selection that displayed the alarming lack of quality available to Arsene Wenger - who was also missing Mesut Ozil through injury - meaning the Gunners' boss was forced to field an XI which from the outset looked as though it would struggle for goals - and indeed that was the case.More news: Eagles Bring Out 'Underdog Mask' After beating Falcons
Wilshere was anxious to make a good impression on his return to the club where he spent last season on loan while Arsenal were keen to register their first victory since the turn of the year. Bellerin ran onto an excellently weighted pass from Alex Iwobi to steer the ball into the Bournemouth net.
Wilson made way for Benik Afobe with time running out as Bournemouth held on for three vital points to lift them to 13th and further away from the danger zone.
Arsenal are now winless in five games in all competitions and five points adrift of fourth place in the Premier League table, prompting a disgruntled reaction from Wenger.More news: Raiders plan to hire Tom Cable as offensive line coach