Free OneDrive storage will decrease from 15 GB to 5 GB for all users, current and new. The 15 GB camera roll storage bonus will also be discontinued. These changes will start rolling out in early 2016.
意思應該是預計2016第一季開始實施

If you are using more than 5 GB of free storage, you will continue to have access to all files for at least 12 months after these changes go into effect in early 2016. In addition, you can redeem a free one-year Office 365 Personal subscription (credit card required), which includes 1 TB of OneDrive storage.
1.如果屆時使用容量超過5GB，超過的部分可保存一年
2.也可以選擇加入使用Office 365 Personal，除了Office一年免費外，訂閱期間還有1TB的使用空間

PS:
就個人使用Xbox Life金會員的經驗來說，微軟的訂閱有一個很討厭的地方，它會自動續約雖然訂閱當下系統有明顯標示出會自動續約，但是完全沒有可取消的選項，必須得事後另外線上取消，取消選項還埋的很深很深
不知道現在訂閱系統改善了沒有???