Will there be another series similar to Harry Potter and the Twilight Saga?

if my book gets published, yeh, why?

Most likely ^_^

In what way "similar"?

Definately, there are quite a few books similar... (minus the sparkles)
If I ever make it as an author, my first book is similar- ish.
xD

There better be!

Depends on what you mean. Do you mean "similar" as in about wizards and vampires? Then yes.

If you mean "similar" as in, exactly like them in every way, then no.

Or, if you mean "similar" as in series' that will be world wide phenomenon that touched millions of people's lives, then, who knows?