The 20-year old has featured 31 times in the Sky Bet Championship, whilst also starring in the Latics impressive FA Cup and Europa League runs, and Rosler intends to keep the former Crewe player for another season.
As reported by the Mail Online, Rosler visited United's Carrington training ground on Wednesday to open discussions with the current management, whilst also showing his willingness to sign Powell if United wish to sell.
The Englishman - who was signed under the reign of Sir Alex Ferguson - has featured just twice for United, and it is unclear if interim head-coach Ryan Giggs - and rumoured future manager Louis Van Gaal - intend to incorporate Powell into the first team set-up.
Norwich and Swansea had previously expressed an interest in Powell, but former United manager David Moyes rejected bids, as he wanted Powell to develop out on loan, seeing him as an important part of the future of the team.
Having impressed during his current spell, it is clear that Powell has the talent to make it at the top level, and it would be unwise for United to sell their starlet before he has a chance to impress in the Premier League. If Wigan achieve promotion through the play-offs, a spell in the top flight would do wonders for Powell's development, and it would be United who claim the benefit.