The Collaborative International Dictionary of English v.0.48:

Hereafter \Here*aft"er\, adv. [AS. h[=e]r[ae]fter.]
   In time to come; in some future time or state.
   [1913 Webster]

         Hereafter he from war shall come.        --Dryden.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Hereafter \Here*aft"er\, n.
   A future existence or state.
   [1913 Webster]

         'Tis Heaven itself that points out an hereafter.
                                                  --Addison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hereafter
    adv 1: in a subsequent part of this document or statement or
           matter etc.; "the landlord demises unto the tenant the
           premises hereinafter called the demised premises"; "the
           terms specified hereunder" [syn: hereinafter,
           hereafter, hereunder]
    2: in a future life or state; "hope to win salvation hereafter"
    3: following this in time or order or place; after this;
       "hereafter you will no longer receive an allowance"
    n 1: life after death [syn: afterlife, hereafter]
    2: the time yet to come [syn: future, hereafter, futurity,
       time to come] [ant: past, past times, yesteryear]

Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "hereafter":
   Heaven, Paradise, a better place, afterlife, afterworld,
   approaching, coming, desired, destinal, destined, destiny,
   determined, emergent, eternal home, eventual, extrapolated, fatal,
   fate, fated, fatidic, forthcoming, from here in, from now on,
   from then on, from this point, future, future state, futuristic,
   henceforth, henceforward, henceforwards, hereinafter, home,
   hoped-for, imminent, later, life after death, life to come,
   nearing, next world, otherworld, planned, plotted, postexistence,
   predicted, probable, projected, prophesied, prospective,
   the beyond, the good hereafter, the grave, the great beyond,
   the great hereafter, the hereafter, the unknown, thence,
   thenceforth, thenceforward, thenceforwards, thereafter, to come,
   to-be, ultimate, what bodes, what is fated, world to come