It seems ex-Kisenosato has given up on waiting for Takayasu to win his yusho. Either that, or he knows something we don't about the Nagoya yusho winner.
Jokes aside:
Asahi Sumo reports that the rijikai has approved Araiso-oyakata's request to branch out from Tagonoura stable effective August 1st. Araiso-beya will be based in Ibaraki (possibly using the old Tatsunami premises?), and Araiso-oyakata will take Jd60e Adachi, Jk16w Nishihara, Jk17e Taniguchi, and Jk17w Kato with him, as well as makushita gyoji Kimura Takanosuke with him.
EDIT1: More news from Hochi Sport:
The new heya will be in Ibaraki prefecture, Inashiki district, Ami town (next to Kisenosato's home base of Ushiku) and is expected to be completed in the summer of next year. For the time being, they will use temporary premises in Tsukuba city (not Tsukubamirai, where Tatsunami was).
EDIT2: Courtesy of Herouth:
Herouth points out that Adachi is clearly not Araiso-oyakata's deshi, having been his stablemate since 2002, but it "makes sense that a new heya with three baby deshi needs a mature anideshi" (and a chankocho, probably).
EDIT3: Asahi's interview with Araiso-oyakata
Araiso-oyakata confirms Hochi's reporting of the location of his heya, and says he wants to "give guidance that suits each wrestler". He says it's been 2 years since his intai, and he's heard and considered what various people have had to say in his time at graduate school. He wants to put this into practice, with an emphasis on the environment (presumably meaning the heya and training environment rather than the physical location and natural environment), and he also wants to give back to Ibaraki in consideration of the support he has received. When asked how many years it will be before he produces a sekitori, he says that he wants to do it early, but there were times when he himself was bogged down and made less progress when expected. What matters is where you finally end up, and that one doesn't fall on the way up. It doesn't matter whether it's early or late, and he's more concerned with building up the bodies of his wrestlers.