Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,181
A 5th J award seat isn't all that likely.
One alternative is to book PE with cash and look regularly for the option to UUA. If that never becomes available, you can switch seats with MiL and earn yourself some "good SiL" bonus points.