As far as l can gather, there are there are many ways to say "from here on,..." or "After this..." or etc, but actually what expressions are more commonly used in everyday English?
e.g. Elizabeth Gaskell's novel "Ruth" will hereafter be cited within the text as EG.
from now on/as from now:
e.g. From now on the gates will be locked at midnight
e.g. Henceforth, said building shall be the property of Brendan Duggan.
If there are some other common expressions (that I didn't mention), please tell me.
And also If you mentioned two expressions like X and Y, please specify that: In written/spoken English, people often prefer to use X rather than Y.