Yes.
No, they were killed before the series begins.
J.K. Rowling announced that Harry Potter and the Deathly Hallows was the 7th and final book of the Harry Potter series. There will not be another book. However, there are plenty of fan fictions to read.
I suppose they still will be movies (or films), but there won't be more Harry Potter episode, the series is finished.
That might be Nicolas Flamell, who live some centuries ago. According to the Harry Potter story, he was still alive.
no
The adult Harry Potter was still played by Daniel Radcliffe.
Ben Riddle is not a character in the Harry Potter series and Rose Weasley was still alive at the end of the series.
J.K. Rowling has stated multiple times that she doesn't plan to write any more Harry Potter books. However, she has said that the Potter characters are "still living on in her head" and "in 20 years she might consider it" but the chances are pretty slim. Currently, she is working on a website called PotterMore, which is all about Harry Potter, and scheduled to open in the fall. However, she has revealed plans to eventually publish a Harry Potter Encyclopedia, full of facts about Harry's world.
Harry Potter does survive book seven, he is still there at the end of it.
Obviously you can still like Harry Potter. I guess that's what makes you a "fan".
Over the series, various girls have a crush on him: Cho Chang, Romilda Vane and Ginny Weasly. Harry Potter 1-3: Ginny Weasley has a crush on Harry. Harry Potter 4: Maybe Cho Chang - but Cho Chang was dating Cedric Diggory who died... Harry Potter 5: Cho Chang has a crush on Harry and they later start dating. Harry Potter 6: Romilda Vane and her friends are obsessed with Harry and tries to slip him a love potion which he doesn't use but Ron does. Then in the middle of the movie and close to the end of the book Harry and Ginny kiss and become girlfriend/boyfriend. Harry Potter 7: Ginny still loves Harry but they are apart and don't see each other for most of the book In the end, Harry marries Ginny Weasley.
No There is still more!