a statement about what will happen in the future

(What is the part of speech of 'what'? Is 'what' an interrogative pronoun or a relative pronoun?)

3 answers

In this (not a complete sentence yet!), "what" is an interrogative pronoun. It's introducing an indirect question.
Thank you.

1. a statement about what will happen in the future

2. a statement about the things which will happen in the future

(What about this one? Is #1 the same as #2?)
Both mean the same thing, except that 1 has that indirect question in it introduced by "what," while 2 has a relative clause introduced by "which."

http://speakspeak.com/resources/english-grammar-rules/questions/structures-of-indirect-questions

http://www.chompchomp.com/terms/relativeclause.htm