I'll say up front that I think the mystery ship declaration a bit of a red herring but, you can decide for yourself.
Background: October, 1944 off Brunei, prior to the sortie for Leyte Gulf. Lt. Shiraishi Tohei on Isokaze took 10-20 photos of various IJN ships gathered at the anchorage. Several are of Isokaze and have been posted earlier in this thread. Others include some familiar, though grainy, photos of Yamato, Mogami, Chokai, and Nagato, among others. (The film lay forgotten in the camera until 4 years after the war. Some film degradation took place.)
Among the ships are CL Yahagi, flag for DesRon 10 and her six direct reports: DesDiv 2's Kiyoshimo (Yugumo class), DesDiv 4's Nowaki (Kagero class) and DesDiv 17's Urakaze, Yukikaze, Hamakaze and Isokaze (all Kagero class). The photo below (divided into two parts) shows several of the DDs, including one in the middle that some think is Nowaki.
On the right, is another DD that for all intents and purposes, appears to be another Kagero type. However, some folks think the bridge too streamlined and angled for a Kagero and better matches a Yugumo, hence the start of a lot of head scratching. Particularly if, as some believe, the photo was mis-stated and was taken earlier, perhaps off Lingga or Tawi Tawi, amongst other ships.
It's not Kiyoshima - her cupola atop the director is much larger, and she carried the additional 25mm AA around funnel #1 , typical of late war Yugumos. Nor is it, as some others believed, Naganami, as she was subsequently identified with a new, larger cupola and the additional 25mm AA & bandstands around funnel #1.
So, setting aside that the mystery is probably due to just the angle of the photograph and some equipment at the base of the bridge altering the silhouette, what ship could possibly be mostly Kagero, part Yugumo?

A rebuilt Shiranui?