Very very unlikely because Gomez supposedly already rejected us when he was younger at Stuttgart. And besides Hoeness I highly doubt will let a German international like Gómez go after he's paid €35m for him, that too just 12 months later.
I could see a point in getting Källstrøm and selling one of Melo or Sissoko (i'd sell Sissoko) and then add the difference to our budget. We'd even be a better team since we would be unable to start with only destroyers.
Fabregas would be a huge addition, and Van Persie would beat any other striker we currently have at the team. If Robben manages to stay fit for most of the season, then Van Persie should also be able to stay injury free.
And besides, all our strikers have also been injured often enough.