German website 'WA' reports that the Bundesliga side's sporting director Michael Zorc will fly to the English capital on Saturday to finalise the Gabonese's move to the 'Gunners'.
Arsenal have made the striker their No.1 target to replace the departing Alexis Sanchez, with the Chilean closing in on a move to Premier Legaue rivals Manchester United.
Aubameyang was tipped to be close to sealing a deal when he was left out of the Dortmund squad for their game against Hertha Berlin on Friday night, though the German side are known to be unhappy with the way Arsenal have conducted themselves.
'Gunners' boss Arsene Wenger hailed the striker in the press this week, leading to Zorc lambasting Arsenal's "lack of respect".
However, despite the feud, it is expected that Aubameyang will complete a £53m switch in the coming days, with a three-and-a-half year contract worth £170,000 per week awaiting him at the Emirates.
Further reports in Germany suggest that French international striker Olivier Giroud could be used as a makeweight in the deal.