At long last and Hereafter

At long last adverb - As the end result of a succession or process.

Hereafter and at long last are semantically related. in eventually topic. In some cases you can use "Hereafter" instead an adverb phrase "At long last".

Hereafter adverb - From this point on.

At long last and hereafter are semantically related. Sometimes you can use "At long last" instead an adverb "Hereafter".