in the future vs thence

in the future

prep
  • At a future time, at some point in the future. 

  • From now on. 

thence

adv
  • From there, from that place or from that time. 

  • Deriving from this fact or circumstance; therefore, therefrom. 

How often have the words in the future and thence occurred in a corpus of books? (source: Google Ngram Viewer )