Disclaimer/introduction for new players
If a sumotori gets a makekoshi (MK = losing record) his first time in that respective division, it's called "hitting the wall". Tomokaze never had a losing record in his first 11 basho (which is amazing), so he still has to hit his career wall. And because it's his first basho in makuuchi division, he has to hit that wall, too.
Goeido and Takayasu had winning records at Ozeki rank last basho. If they get a losing record, they won't be demoted, but placed on kadoban, which means demotion after another makekoshi next basho.
Tochinoshin is kadoban - he had a losing record last basho. If he gets another makekoshi this basho, he will lose his Ozeki status after just 5 basho at this rank.
Takakeisho on the other hand needs only 10 or 11 wins to get promoted to Ozeki after just 28 basho (a bit more than 4 years) from career start in mae-zumo. We might see some Ozeki switcheroo this basho.
Aminishiki is on the brink of retirement (intai). If he gets a losing record and a demotion to makushita division (which means dropping out of salaried ranks), he will step down for sure. Maybe even with a small makekoshi that holds him in juryo.
Guess the colour of the giant macaron:
One of the prices for the yusho winner is a giant fake macaron (as placeholder for a load of real normal sized macarons from the best Pâtisserie in Paris). The colour varies and it has a become a popular game to guess it.