Well, the Moose will have to do without a rival.
Takanohana has formally retired now. He tried a comeback, but it was obvious with the injuries he just wasn't up to it anymore. With his retirement, Musashimaru is the only Yokozuna left and with the way his weight's been growing, his time is probably numbered.
In the meantime, Asashoryu and Dejima now lead the basho with records of 9-1. If Asashoryu wins and gets at least 13 wins, he'll almost certainly be promoted to Yokozuna. The downside of this would be that there was so little competition for him. Chiyotaikai, Kaio, Tochiazuma and Musashimaru are all injured and Musayama is not wrestling well at all.