Munich-based team prepares for Oliveira's comeback at Misano, while Petrucci recovers from coccyx fracture.
Oliveira's shoulder injury sustained in Hungary has hindered his participation in recent rounds of the championship.
After a setback at round four of the championship, Oliveira underwent an intensive rehabilitation programme in Portugal.
He is now ready to return to racing action at Misano, where he aims to claim another podium finish.
The final decision on Petrucci's replacement will be made following his medical assessment at the venue.
Michael van der Mark will switch sides within the garage and reunite with the crew that supported him as a race rider for five years.
Petrucci sustained a fractured coccyx at Most, while Oliveira has been absent from racing due to shoulder injuries.
The BMW test rider and FIM EWC factory rider had stepped in for Oliveira at Most and Aragón and will now replace Petrucci at Misano.
With his return, the team is looking forward to a step back towards normality after some difficult weeks.
The return of Miguel Oliveira marks a significant step forward for the ROKiT BMW Motorrad WorldSBK Team.
