I think we have two advantages next season: 1. Not being in Europe, we don't need a huge squad to compete and 2. The Sky 4 are all showing signs of weakness/instability.
However, and it's a big however, no-one should underestimate how far the Sky 4 are ahead of the pack. To close that gap and finish on top, all in one season, would be an incredible achievement, even if we could get hold of 6 or 7 of the world's top players.
I don't think it can be done. If it happens, Hughes will deserve a knighthood, a huge statue outside COMS made of gold, and to be an eternal legend.