Accidental Researcher
What you should expect, unfortunately, is a lot less attention and recognition than you expect.  Most journal papers don't result in invitations to speak at conferences, and most conference talks are given to fairly small audiences.
If and when you do speak, you'll probably get a lot of questions along the lines of:


"I'm sure you aren't getting as good a result as you think you are."
"Isn't this really the same idea that Dr. Neverheardofem published in 1995?"
"I've completely misunderstood what you said and would like to argue with you about it."
"This is a neat idea, but isn't it much less important than the things that I care about?"


Try not to take it too hard: this is just the inevitable process by which ideas get challenged, and the better that you are able to respond reasonably and constructively, the better your idea will actually be received.