I am guessing selling the Mem, pocketing the money, then either buying a stadium with loan money, or renting a new stadium built by a third party and renting it - would be the only way to asset strip Rovers as they only really have that one asset. I don't think he will do it, he seems like a millionaire who just wants to own and run a football club... kind of dream lot's of people would aspire to.
If he did want to asset strip the club - sell the Mem, put the money into the holding company Dwane Sports. Borrow £40 odd million and build a cheapish stadium, put the loan repayments and debt onto Rovers books (or let a third party pay for and build the stadium and just rent it from them - though that leaves the club in a precarious position). Sell one or two players that may have any value, call in the loans that Dwane Sports hold against Rovers (for purchasing the club / buying out Higgs / paying of Wonga) and sell whats left of Rovers to whoever is interested, or just give it away for a nominal £1. Wael's family are worth around £75 ish million - within a year or 2 he could increase his families wealth by a huge percentage, and that money would be cash as opposed to their current wealth that's mainly tied up in assets.
So I am sure it would be tempting to a businessman.... we will know when the funding for the UWE stadium is announced as to whether that's his plan, if a third party builds it, or most of the money is borrowed and all the loans dumped onto Rovers and not the holding company... you know what's happening.