As it has done for the past decade, our fate really rests on us being able to *insert 'punch above our weight' cliche here* and snatch a CL place (and actually get to the group stage). Then, supposing the extra circa £20m revenue won't be swallowed whole, somehow find three world class bargains that will allow us to do it again the following season, and so on. '05 and '09 were big opportunities we didn't quite grasp, which is terribly frustrating.
As it seems pointless to hope for a new owner, I'd say this season's performance will dictate the next five years. If we somehow finished fourth and got through the qualification round of the CL, we'd likely keep our squad together and be able to add to it. If we don't, it looks probable that Fellaini will be gone and we'll spend another summer rebuilding in order to finish seventh.