Wait, did he get the first half back?I am creating this thread to say which powers they were borrowed and basically what I said in title, if I missed anything please let me know and I edit when I have time:
Sasuke
Itachi eyes to reach EMS
Hagoromo chakra to get Rinnengan
Temporary powers which he has no access to anymore due to losing them
Curse Seal
Drug to awaken Curse Seal to level 2
1st Shukaku
2nd Matatabi
3rd Isobu
4th Son Gokū
5th Kokuō
6th Saiken
7th Chōmei
8th Gyūki
9th Half Kurama
Hashirama Chakra or jutsu (which did nothing or nothing came from it)
Jugo Senjutsu
Orochimaru inside his own body
Naruto
Half Kurama as Jinchuuriki
1st Shukaku
2nd Matatabi
3rd Isobu
4th Son Gokū
5th Kokuō
6th Saiken
7th Chōmei
8th Gyūki
9th Half Kurama to make whole or two Kurama in Naruto
Hagoromo Chakra to awaken RSM
Kurama Cloak
Temporary powers which he has no access to anymore due to losing them
None, didn't lose access to any power at all.
Those are all the powers I can think of.