Futurese

Usually in books dealing with science fiction that takes place in the future people tend to speak in regular English. 1984 was the exception that proves the rule. Other stories like Battlestar Galactica or Red Dwarf hint at linguistic changes by introducing made-up slang but leaving the bulk of the dialog intact. Here's a site in which its author describes in depth what s/he thinks will happen to the English language over the next thousand years. Of course it's all speculation, but isn't it fun to speculate some times?