Another likely change after the Kyushu basho may be with Toki. It appears likely Chiyotenzan will retire after the basho so in that case Chiyotaikai's Sanoyama will likely go to him so Toki needs to find a new one pretty soon.
Is there a source for the "Chiyotenzan retires next basho" part? I'm asking because he has stuck it out far longer than necessary already (assuming he in fact is set to borrow Sanoyama-kabu), which indicates he's waiting for something else to happen first. I agree with Tamanaogijima (way back in post #6, in a different context) that that "something" could well be the mandatory retirement of Takasago-beya's Furiwake-oyakata in July which would open up a share for Toki.
While we're at it, let's look at the other upcoming retirements:
I don't really see an immediate need for Inagawa-kabu so that one might enter the overall borrowing "rotation", unless one of Iwakiyama/Kasuganishiki/Otsukasa already requires it in a year. At the very least there aren't any current Dewanoumi-ichimon oyakata who are borrowing from outside and could stand to upgrade to a more stable share.
Araiso-kabu could be an interesting case with the attached mini-heya, given the recent change in heya-opening restrictions. I actually wonder if he could be persuaded to retire a year early for Harunoyama's benefit next month... FWIW, during his active days Araiso-oyakata was competing out of the pre-merger Futagoyama-beya, as did Harunoyama's shisho Matsugane-oyakata, so there might be a possible connection there. I certainly would expect Harunoyama to end up with the Araiso share next year (with or without the heya) at the latest if he can hang around with borrowed kabu until then as he doesn't really have a whole lot of other options available. That's assuming the kabu isn't already promised to somebody else as Nishonoseki-ichimon does have a few aging veterans with kabu eligibility around in Shunketsu and Tamakasuga, and Wakanosato might need his Nishiiwa share by then which would put ex-Takanotsuru into the competition, too.
Tanigawa-kabu might be another possible destination for Toki, but it becomes available a little late for the Chiyotenzan scenario, and in the long run this one might be going to Kaiho anyway if he wants it. BTW, I see in the DB that Tanigawa was fighting out of Takasago-beya...how did he end up in a stable that branched out from Kokonoe-beya?
Hidenoyama-kabu will probably relieve the pressure within Sadogatake-beya when it becomes available. It's still two years away, and by then Kotomitsuki might be looking for a share to own; additionally there's ex-Kotonishiki who has been making do with borrowed kabu so far (BTW, switching from the relatively stable Takenawa-kabu owned by Tochinonada to Kaio's Asakayama share back in July still looks pretty boneheaded to me), and also ex-Kotogaume and his Onaruto-kabu which is listed by Tamanaogijima as "ownership unclear" - I'm fairly sure it really is owned by Dejima and might be needed sooner or later.
Finally, Azumazeki/Tamanoi/Takadagawa-kabu all have successors lined up already, of course, though at least in the Takadagawa case another share would become available with ex-Akinoshima's Sendagawa-kabu.
Looking further ahead, these are the remaining mandatory retirements by oyakata born in the 1940s:
Check out that glut of retirements in November 2013 (all within one week!), and more generally the run of 12 scheduled retirements from October 2012 to November 2013, about three times as many as you'd expect on average for a fourteen-month period.