The Gunners are on the verge of signing Hincapie through a loan deal with Bayer, which includes an option to buy the player for £45m.
Hincapie, 23, recently bid farewell to Bayer fans, and his current contract with the club has a buyout clause of €60m.
Arsenal has managed to negotiate a lower fee with Bayer, paving the way for Hincapie's potential transfer to the Premier League club.